diff --git a/bin/items.csv b/bin/items.csv
index 5fb96b5..5613aac 100644
--- a/bin/items.csv
+++ b/bin/items.csv
@@ -14,7 +14,7 @@ itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_sta
 6211,marinara-slice,0,0,2500,0,1,0,30000,30
 5743,marinara-pizza,1,0,12000,30,0,0,1,0
 6063,fruit-parfait,1,0,15000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 614,mhaura-garlic,1,0,450,10,1,0,5400,10
 622,dried-marjoram,1,0,1000,10,1,0,12000,10
 630,ogre-pumpkin,1,0,450,10,1,0,5400,10
@@ -33,7 +33,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 4403,yellow-globe,1,0,1750,30,1,0,21000,30
 5128,cone-calamary,0,0,500,0,1,0,5000,30
 5466,trumpet-shell,1,0,7500,30,1,0,90000,30
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 605,pickaxe,0,0,916,0,1,0,11000,30
 1020,sickle,0,0,833,0,1,0,10000,30
 1021,hatchet,0,0,1040,0,1,0,12500,30
@@ -70,7 +70,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 645,darksteel-ore,1,0,7500,30,1,0,90000,10
 1155,iron-sand,1,0,500,30,1,0,6000,30
 1703,kunwu-ore,1,0,7500,30,1,0,90000,10
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 1161,uchitake,0,0,120,0,1,0,12000,30
 1164,tsurara,0,0,120,0,1,0,12000,30
 1167,kawahori-ogi,0,0,120,0,1,0,12000,30
@@ -84,7 +84,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 1191,kodoku,0,0,200,0,1,0,20000,30
 1194,shinobi-tabi,0,0,400,0,1,0,40000,30
 2553,sanjaku-tenugui,0,0,350,0,1,0,35000,30
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 17297,(special)throwing-coin,1,1,1,30,1,1,12,30
 17308,hawkeye,0,0,150,0,1,0,15000,30
 17298,tathlum,0,0,300,0,1,0,30000,30
@@ -108,7 +108,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 18155,scorpion-arrow,0,0,180,0,1,0,18000,30
 17325,kabura-arrow,0,0,200,0,1,0,20000,30
 18696,paralysis-arrow,0,0,200,0,1,0,20000,30
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 4609,cure,1,0,100,30,0,0,1,0
 4610,cure-ii,1,0,800,30,0,0,1,0
 4611,cure-iii,1,0,4000,30,0,0,1,0
@@ -146,7 +146,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 4665,haste,1,0,24000,30,0,0,1,0
 4666,paralyze,1,0,500,30,0,0,1,0
 4667,silence,1,0,5000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 4668,barfire,1,0,2000,30,0,0,1,0
 4669,barblizzard,1,0,5000,30,0,0,1,0
 4670,baraero,1,0,1000,30,0,0,1,0
@@ -189,7 +189,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 4718,regen-ii,1,0,8000,30,0,0,1,0
 4719,regen-iii,1,0,20000,30,0,0,1,0
 4720,flash,1,0,40000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 4721,repose,1,0,40000,30,0,0,1,0
 4733,protectra,1,0,1000,30,0,0,1,0
 4734,protectra-ii,1,0,8000,30,0,0,1,0
@@ -230,7 +230,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 4778,water-ii,1,0,10000,30,0,0,1,0
 4779,water-iii,1,0,25000,30,0,0,1,0
 4780,water-iv,1,0,120000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 4782,firaga,1,0,10000,30,0,0,1,0
 4783,firaga-ii,1,0,25000,30,0,0,1,0
 4784,firaga-iii,1,0,120000,30,0,0,1,0
@@ -263,7 +263,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 4854,drain-ii,1,0,40000,30,0,0,1,0
 4858,ice-spikes,1,0,60000,30,0,0,1,0
 4859,shock-spikes,1,0,10000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 4860,stun,1,0,34000,30,0,0,1,0
 4861,sleep,1,0,5000,30,0,0,1,0
 4862,blind,1,0,200,30,0,0,1,0
@@ -298,7 +298,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 4944,suiton-ichi,1,0,40000,30,0,0,1,0
 4947,utsusemi-ni,1,0,400000,30,0,0,1,0
 4964,monomi-ichi,1,0,12000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 4976,foe-requiem,1,0,100,30,0,0,1,0
 4977,foe-requiem-ii,1,0,1000,30,0,0,1,0
 4978,foe-requiem-iii,1,0,5000,30,0,0,1,0
@@ -332,7 +332,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 5028,victory-march,1,0,30000,30,0,0,1,0
 5029,battlefield-elegy,1,0,6000,30,0,0,1,0
 5030,carnage-elegy,1,0,40000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 5032,sinewy-etude,1,0,5000,30,0,0,1,0
 5033,dextrous-etude,1,0,5000,30,0,0,1,0
 5034,vivacious-etude,1,0,5000,30,0,0,1,0
@@ -369,7 +369,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 5074,maidens-virelai,1,0,250000,30,0,0,1,0
 5075,raptor-mazurka,1,0,5000,30,0,0,1,0
 5104,flurry,1,0,32000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 13891,san-dorian-helm,1,0,40000,30,0,0,1,0
 13895,san-bandana,1,0,35000,30,0,0,1,0
 14033,san-mufflers,1,0,40000,30,0,0,1,0
@@ -388,7 +388,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 17972,san-dagger,1,0,40000,30,0,0,1,0
 18068,san-dorian-spear,1,0,40000,30,0,0,1,0
 18070,san-halberd,1,0,35000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 12372,bastokan-targe,1,0,30000,30,0,0,1,0
 13889,bastokan-cap,1,0,30000,30,0,0,1,0
 13897,bastokan-visor,1,0,40000,30,0,0,1,0
@@ -410,7 +410,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 17929,bastokan-axe,1,0,35000,30,0,0,1,0
 17974,bastokan-dagger,1,0,40000,30,0,0,1,0
 18038,bastokan-scythe,1,0,25000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 13901,win-hachimaki,1,0,40000,30,0,0,1,0
 13903,win-headgear,1,0,40000,30,0,0,1,0
 14043,windurstian-tekko,1,0,40000,30,0,0,1,0
@@ -431,7 +431,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 17976,windurstian-knife,1,0,60000,30,0,0,1,0
 17978,windurstian-kukri,1,0,60000,30,0,0,1,0
 18036,win-scythe,1,0,25000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 14176,field-boots,1,0,200000,30,0,0,1,0
 14297,field-hose,1,0,200000,30,0,0,1,0
 14374,field-tunica,1,0,200000,30,0,0,1,0
@@ -454,7 +454,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 14314,garrison-hose,1,0,80000,30,0,0,1,0
 14841,garrison-gloves,1,0,80000,30,0,0,1,0
 15147,garrison-sallet,1,0,80000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 17272,military-gun,1,0,90000,30,0,0,1,0
 17580,military-pole,1,0,75000,30,0,0,1,0
 17839,military-harp,1,0,75000,30,0,0,1,0
@@ -473,7 +473,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 18213,mighty-axe,1,0,200000,30,0,0,1,0
 18374,mighty-sword,1,0,200000,30,0,0,1,0
 17697,mighty-talwar,1,0,200000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 16565,spatha,1,0,4000,30,0,0,1,0
 17095,ash-pole,1,0,4000,30,0,0,1,0
 16385,cesti,1,0,5000,30,0,0,1,0
@@ -506,7 +506,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 17161,power-bow,1,0,20000,30,0,0,1,0
 17257,bandits-gun,1,0,20000,30,0,0,1,0
 17354,harp,1,0,20000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 16536,iron-sword,1,0,20000,30,0,0,1,0
 16392,metal-knuckles,1,0,20000,30,0,0,1,0
 16473,kukri,1,0,20000,30,0,0,1,0
@@ -531,7 +531,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 16532,gladius,1,0,25000,30,0,0,1,0
 16478,poison-kukri,1,0,30000,30,0,0,1,0
 19105,thugs-jambiya,1,0,30000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 13313,shell-earring,1,0,10000,30,0,0,1,0
 13321,bone-earring,1,0,10000,30,0,0,1,0
 13327,silver-earring,1,0,10000,30,0,0,1,0
@@ -552,7 +552,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 13472,lapis-lazuli-ring,1,0,10000,30,0,0,1,0
 13473,amber-ring,1,0,10000,30,0,0,1,0
 13474,onyx-ring,1,0,10000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 13594,rabbit-mantle,1,0,5000,30,0,0,1,0
 12440,leather-bandana,1,0,10000,30,0,0,1,0
 12568,leather-vest,1,0,10000,30,0,0,1,0
@@ -570,7 +570,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 13193,lizard-belt,1,0,10000,30,0,0,1,0
 13592,lizard-mantle,1,0,10000,30,0,0,1,0
 19011,lizard-strap,1,0,10000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 12449,brass-cap,1,0,10000,30,0,0,1,0
 12497,brass-hairpin,1,0,10000,30,0,0,1,0
 12577,brass-harness,1,0,20000,30,0,0,1,0
@@ -585,7 +585,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 12816,scale-cuisses,1,0,20000,30,0,0,1,0
 12944,scale-greaves,1,0,10000,30,0,0,1,0
 19009,brass-grip,1,0,10000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 12456,hachimaki,1,0,10000,30,0,0,1,0
 12464,headgear,1,0,10000,30,0,0,1,0
 12584,kenpogi,1,0,10000,30,0,0,1,0
@@ -600,7 +600,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 12729,linen-cuffs,1,0,10000,30,0,0,1,0
 12857,linen-slops,1,0,15000,30,0,0,1,0
 12985,holly-clogs,1,0,10000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 12454,bone-mask,1,0,10000,30,0,0,1,0
 12582,bone-harness,1,0,15000,30,0,0,1,0
 12710,bone-mittens,1,0,10000,30,0,0,1,0
@@ -621,7 +621,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 12680,chain-mittens,1,0,20000,30,0,0,1,0
 12808,chain-hose,1,0,25000,30,0,0,1,0
 12936,greaves,1,0,20000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 12458,soil-hachimaki,1,0,30000,30,0,0,1,0
 12586,soil-gi,1,0,30000,30,0,0,1,0
 12714,soil-tekko,1,0,30000,30,0,0,1,0
@@ -642,7 +642,7 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 14854,noct-gloves,1,0,50000,30,0,0,1,0
 15161,noct-beret,1,0,50000,30,0,0,1,0
 15311,noct-gaiters,1,0,50000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 12466,red-cap,1,0,50000,30,0,0,1,0
 12594,gambison,1,0,50000,30,0,0,1,0
 12722,bracers,1,0,50000,30,0,0,1,0
@@ -653,8 +653,8 @@ itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
 12681,silver-mittens,1,0,50000,30,0,0,1,0
 12809,silver-hose,1,0,50000,30,0,0,1,0
 12937,silver-greaves,1,0,50000,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,1,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks
 1210,damp-scroll,1,0,25000,30,0,0,1,0
 14117,rusty-leggings,1,0,2500,30,0,0,1,0
 14242,rusty-subligar,1,0,2500,30,0,0,1,0
-itemid,name,sell01,buy01,price01,stock01,sell12,buy12,price12,stock12
+itemid,name,sell_single,buy_single,price_single,stock_single,sell_stacks,buy_stacks,price_stacks,stock_stacks