CrossBow in Minecraft Only One Command

/summon MinecartCommandBlock ~ ~1 ~ {Command:kill @e[type=MinecartCommandBlock,r=1],Riding:{id:MinecartCommandBlock,Command:setblock ~ ~-1 ~1 redstone_block,Riding:{id:MinecartCommandBlock,Command:setblock ~ ~ ~1 command_block 0 replace {Command:fill ~ ~-3 ~-1 ~ ~ ~ air},Riding:{id:MinecartCommandBlock,Command:"scoreboard objectives add ZG0Yp_I dummy",Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~-1 ~ redstone_block,Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~-1 ~-1 command_block 0 replace {Command:fill ~ ~ ~1 ~2 ~ ~1 stone},Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~-1 ~1 command_block 0 replace {Command:fill ~ ~ ~-1 ~2 ~ ~-1 redstone_block},Riding:{id:MinecartCommandBlock,Command:setblock ~4 ~-1 ~-1 command_block 0 replace {Command:"scoreboard players set @e[type=Item] ZG0Yp_I 1 {Item:{id:\\\"minecraft:string\\\"},OnGround:1b}"},Riding:{id:MinecartCommandBlock,Command:setblock ~4 ~-1 ~1 command_block 0 replace {Command:"scoreboard players set @e[type=Item] ZG0Yp_I 2 {Item:{id:\\\"minecraft:stick\\\"},OnGround:1b}"},Riding:{id:MinecartCommandBlock,Command:setblock ~5 ~-1 ~-1 command_block 0 replace {Command:"execute @e[score_ZG0Yp_I_min=1,score_ZG0Yp_I=1] ~ ~ ~ execute @e[r=0,score_ZG0Yp_I_min=2,score_ZG0Yp_I=2] ~ ~ ~ summon Item ~ ~ ~ {Item:{id:\\\"minecraft:bow\\\",Count:1,tag:{display:{Name:\\\"Cross Bow\\\"}}}}"},Riding:{id:MinecartCommandBlock,Command:setblock ~5 ~-1 ~1 command_block 0 replace {Command:"execute @e[score_ZG0Yp_I_min=1,score_ZG0Yp_I=1] ~ ~ ~ execute @e[r=0,score_ZG0Yp_I_min=2,score_ZG0Yp_I=2] ~ ~ ~ kill @e[type=Item,score_ZG0Yp_I_min=1,score_ZG0Yp_I=2,r=3]"},Riding:{id:MinecartCommandBlock,Command:setblock ~1 ~ ~ wall_sign 4 replace {Text1:"{text:\\\"==============================\\\",color:green,clickEvent:{action:\\\"run_command\\\",value:\\\"/say @p Check My Channel Out DoomZtriker Gaming you might like it!!!\\\"},bold:true}",Text2:"{text:\\\"Creted by \\\",color:green}",Text3:"{text:\\\"DoomZtriker\\\",color:green}",Text4:"{text:\\\"=======================\\\",color:green,bold:true}"},Riding:{id:MinecartCommandBlock,Command:setblock ~1 ~-1 ~ wall_sign 4 replace {Text1:"{text:\\\"==========================\\\",color:red,clickEvent:{action:\\\"run_command\\\",value:\\\"/say @p Mkay Bye!!!\\\"}}",Text2:"{text:\\\"Destroy\\\",color:red,bold:true}",Text3:"{text:\\\"Machine\\\",color:red,bold:true}",Text4:"{text:\\\"========================\\\",color:red,clickEvent:{action:\\\"run_command\\\",value:\\\"fill ~ ~-1 ~-2 ~6 ~2 ~2 air\\\"}}"},Riding:{id:MinecartCommandBlock,Command:setblock ~1 ~-2 ~ wall_sign 4 replace {Text1:"{text:\\\"===========================\\\",color:black,clickEvent:{action:\\\"run_command\\\",value:\\\"/say Drop a string and one stick\\\"},bold:true}",Text2:"{text:\\\"Get items \\\",color:black}",Text3:"{text:\\\"by\\\",color:black}",Text4:"{text:\\\"===========================\\\",color:black,bold:true}"},Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-1 ~-2 ~6 ~-1 ~2 glass 0 replace quartz_block 0,Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-2 ~-2 ~6 ~ ~2 quartz_block 0 hollow,Riding:{id:MinecartCommandBlock,Command:gamerule commandBlockOutput false,Riding:{id:MinecartCommandBlock,Riding:{id:FallingSand,Block:activator_rail,Time:1,Riding:{id:FallingSand,Block:redstone_block,Time:1,Riding:{id:FallingSand,Block:stone,Time:1}}}}}}}}}}}}}}}}}}}}}