PowderToConcrete StackCauldronVersion

/summon item ~ ~4 ~ {Item:{id:stone,Count:1},Age:5996,Passengers:[{id:falling_block,Time:1,Data:0,TileID:152,Passengers:[{id:falling_block,Time:1,Data:0,TileID:157,Passengers:[{id:commandblock_minecart,Command:buffer,Passengers:[{id:commandblock_minecart,Command:"setblock ~3 ~-1 ~-3 repeating_command_block 5 replace {auto:1b,Command:\"/scoreboard players tag @e[type=Item] add concretePowder {Item:{id:\\\"minecraft:concrete_powder\\\"}}\"}"},{id:commandblock_minecart,Command:"setblock ~4 ~-1 ~-3 chain_command_block 13 replace {auto:1b,Command:\"execute @e[tag=concretePowder] ~ ~ ~ detect ~ ~ ~ cauldron level=3 entitydata @e[tag=concretePowder,c=1] {Item:{id:\\\"minecraft:concrete\\\"}}\"}"},{id:commandblock_minecart,Command:"setblock ~5 ~-1 ~-3 chain_command_block 13 replace {auto:1b,Command:execute @e[tag=concretePowder] ~ ~ ~ detect ~ ~ ~ cauldron level=3 setblock ~ ~ ~ cauldron level=0}"},{id:commandblock_minecart,Command:"setblock ~6 ~-1 ~-3 chain_command_block 13 replace {auto:1b,Command:/scoreboard players tag @e[tag=concretePowder] remove concretePowder}"},{id:commandblock_minecart,Command:fill ~3 ~-2 ~-4 ~6 ~-2 ~-2 stained_hardened_clay 14},{id:commandblock_minecart,Command:fill ~3 ~-1 ~-4 ~6 ~-1 ~-4 stained_glass 14},{id:commandblock_minecart,Command:fill ~3 ~-1 ~-2 ~6 ~-1 ~-2 stained_glass 14},{id:commandblock_minecart,Command:fill ~3 ~0 ~-4 ~6 ~0 ~-2 stained_hardened_clay 14},{id:commandblock_minecart,Command:"setblock ~2 ~-1 ~-3 wall_sign 4 replace {Text4:\"{\\\"bold\\\":true,\\\"color\\\":\\\"blue\\\",\\\"text\\\":\\\"Stack Cauldron\\\"}\",Text3:\"{\\\"italic\\\":true,\\\"color\\\":\\\"green\\\",\\\"text\\\":\\\"by Insane96MCP\\\"}\",Text2:\"{\\\"underlined\\\":true,\\\"color\\\":\\\"dark_red\\\",\\\"text\\\":\\\"\\\\u003d Concrete\\\"}\",Text1:\"{\\\"underlined\\\":true,\\\"color\\\":\\\"dark_red\\\",\\\"text\\\":\\\"Powder + Water\\\"}\"}",Passengers:[{id:commandblock_minecart,Command:/kill @e[type=item,r=4],Passengers:[{id:commandblock_minecart,Command:setblock ~ ~ ~ air,Passengers:[{id:falling_block,Time:1,Block:minecraft:command_block,TileEntityData:{Command:kill @e[type=commandblock_minecart,r=4],auto:1},Passengers:[{id:falling_block,Time:1,Block:minecraft:command_block,TileEntityData:{Command:fill ~ ~1 ~ ~ ~-2 ~ air,auto:1}}]}]}]}]}]}]}]}]}