Zombies to Vampires! Minecraft 1.8

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:setblock ~3 ~-2 ~ redstone_block,Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~-1 command_block 0 replace {Command:fill ~ ~ ~1 ~2 ~ ~1 stone},Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~1 command_block 0 replace {Command:fill ~ ~ ~-1 ~2 ~ ~-1 redstone_block},Riding:{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~-1 command_block 0 replace {Command:"/execute @e[type=Zombie] ~ ~ ~ /summon Skeleton ~ ~ ~ {CustomName:\\\"Vampire\\\",CustomNameVisible:1,Equipment:[{id:ghast_tear,Count:1,tag:{ench: [{id:16, lvl:5}]}},{},{},{id:leather_chestplate,Count:1,tag:{Unbreakable:1,ench:[{id:0,lvl:5}],display:{color:1310720}}},{id:skull,Damage:1,Count:1}],DropChances:[0.0F,0.085F,0.085F,0.0F,0.0F],Attributes:[{Name:generic.maxHealth,Base:30},{Name:generic.movementSpeed,Base:0.2}],HealF:30,ActiveEffects:[{Id:14,Amplifier:1,Duration:20000000,ShowParticles:0b}]}"},Riding:{id:MinecartCommandBlock,Command:setblock ~4 ~-2 ~1 command_block 0 replace {Command:"/tp @e[type=Zombie] ~ ~-100 ~"},Riding:{id:MinecartCommandBlock,Command:setblock ~5 ~-2 ~-1 command_block 0 replace {Command:"/kill @e[type=Zombie]"},Riding:{id:MinecartCommandBlock,Command:setblock ~1 ~-1 ~ wall_sign 4 replace {Text2:"{text:\\\"Created by:\\\",color:dark_purple,bold:true}",Text3:"{text:\\\"LFFB\\\",color:blue,italic:true,bold:true}"},Riding:{id:MinecartCommandBlock,Command:setblock ~1 ~-2 ~ wall_sign 4 replace {Text2:"{text:\\\"Destroy\\\",color:dark_red,bold:true,underlined:true}",Text3:"{text:\\\"machine\\\",color:dark_red,bold:true,underlined:true}",Text4:"{text:\\\"\\\",clickEvent:{action:\\\"run_command\\\",value:\\\"fill ~ ~-1 ~-2 ~6 ~2 ~2 air\\\"}}"},Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-2 ~-2 ~6 ~-2 ~2 stained_glass 15 replace coal_block 0,Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-3 ~-2 ~6 ~-1 ~2 coal_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}}}}}}}}}}}}}}}}}}