Conveyor Belts with Only One Command

summon FallingSand ~ ~1 ~ {Block:stone,Time:1,Passengers:[{id:FallingSand,Block:redstone_block,Time:1,Passengers:[{id:FallingSand,Block:activator_rail,Time:1,Passengers:[{id:MinecartCommandBlock,Command:gamerule commandBlockOutput false},{id:MinecartCommandBlock,Command:fill ~2 ~-3 ~-1 ~8 ~-1 ~2 stained_hardened_clay 5 hollow},{id:MinecartCommandBlock,Command:fill ~2 ~-2 ~-1 ~8 ~-2 ~2 stained_glass 0 0 stained_hardened_clay},{id:MinecartCommandBlock,Command:setblock ~1 ~-3 ~ wall_sign 4 0 {Text1:"{\\\"text\\\":\\\"\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"/tellraw @p [\\\\\\\"\\\\\\\",{\\\\\\\"text\\\\\\\":\\\\\\\"Click \\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"green\\\\\\\"},{\\\\\\\"text\\\\\\\":\\\\\\\"here\\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"aqua\\\\\\\",\\\\\\\"italic\\\\\\\":true,\\\\\\\"underlined\\\\\\\":true,\\\\\\\"clickEvent\\\\\\\":{\\\\\\\"action\\\\\\\":\\\\\\\"open_url\\\\\\\",\\\\\\\"value\\\\\\\":\\\\\\\"https://goo.gl/BP2KUB\\\\\\\"},\\\\\\\"hoverEvent\\\\\\\":{\\\\\\\"action\\\\\\\":\\\\\\\"show_text\\\\\\\",\\\\\\\"value\\\\\\\":{\\\\\\\"text\\\\\\\":\\\\\\\"\\\\\\\",\\\\\\\"extra\\\\\\\":[{\\\\\\\"text\\\\\\\":\\\\\\\"Click me =)\\\\\\\"}]}}},{\\\\\\\"text\\\\\\\":\\\\\\\" to go to my YT-Channel \\\\\\\",\\\\\\\"color\\\\\\\":\\\\\\\"green\\\\\\\",\\\\\\\"italic\\\\\\\":false,\\\\\\\"underlined\\\\\\\":false}]\\\"}}",Text2:"{\\\"text\\\":\\\"Conveyor belts\\\",\\\"color\\\":\\\"dark_blue\\\",\\\"italic\\\":true}",Text3:"{\\\"text\\\":\\\"by TCSimon\\\",\\\"color\\\":\\\"dark_red\\\"}",Text4:"{\\\"text\\\":\\\"\\\"}"}},{id:MinecartCommandBlock,Command:setblock ~1 ~-2 ~ wall_sign 4 0 {Text1:"{\\\"text\\\":\\\"===============\\\"}",Text2:"{\\\"text\\\":\\\"Click to remove \\\"}",Text3:"{\\\"text\\\":\\\"this structure\\\"}",Text4:"{\\\"text\\\":\\\"===============\\\",\\\"clickEvent\\\":{\\\"action\\\":\\\"run_command\\\",\\\"value\\\":\\\"fill ~ ~-1 ~-1 ~7 ~1 ~2 air\\\"}}"}},{id:MinecartCommandBlock,Command:fill ~3 ~-2 ~ ~7 ~-2 ~1 chain_command_block 5},{id:MinecartCommandBlock,Command:fill ~7 ~-2 ~1 ~5 ~-2 ~1 chain_command_block 4},{id:MinecartCommandBlock,Command:setblock ~7 ~-2 ~ chain_command_block 3},{id:MinecartCommandBlock,Command:setblock ~3 ~-2 ~ repeating_command_block 5},{id:MinecartCommandBlock,Command:blockdata ~5 ~-2 ~1 {auto:1,Command:/execute @e ~ ~ ~ detect ~ ~-2 ~ stone_stairs 6 tp @e[c=1] ~ ~ ~-0.2 }},{id:MinecartCommandBlock,Command:blockdata ~6 ~-2 ~1 {auto:1,Command:/execute @e ~ ~ ~ detect ~ ~-2 ~ stone_stairs 5 tp @e[c=1] ~0.2 ~ ~ }},{id:MinecartCommandBlock,Command:blockdata ~7 ~-2 ~1 {auto:1,Command:/execute @e ~ ~ ~ detect ~ ~-2 ~ stone_stairs 3 tp @e[c=1] ~ ~ ~0.2 }},{id:MinecartCommandBlock,Command:blockdata ~7 ~-2 ~ {auto:1,Command:/execute @e ~ ~ ~ detect ~ ~-2 ~ stone_stairs 1 tp @e[c=1] ~0.2 ~ ~ }},{id:MinecartCommandBlock,Command:blockdata ~6 ~-2 ~ {auto:1,Command:/execute @e ~ ~ ~ detect ~ ~-2 ~ stone_stairs 7 tp @e[c=1] ~ ~ ~0.2 }},{id:MinecartCommandBlock,Command:blockdata ~5 ~-2 ~ {auto:1,Command:/execute @e ~ ~ ~ detect ~ ~-2 ~ stone_stairs 4 tp @e[c=1] ~-0.2 ~ ~ }},{id:MinecartCommandBlock,Command:blockdata ~4 ~-2 ~ {auto:1,Command:/execute @e ~ ~ ~ detect ~ ~-2 ~ stone_stairs 2 tp @e[c=1] ~ ~ ~-0.2 }},{id:MinecartCommandBlock,Command:blockdata ~3 ~-2 ~ {auto:1,Command:/execute @e ~ ~ ~ detect ~ ~-2 ~ stone_stairs 0 tp @e[c=1] ~-0.2 ~ ~ }},{id:MinecartCommandBlock,Command:setblock ~ ~ ~1 command_block 0 0 {Command:fill ~ ~-3 ~-1 ~ ~ ~ air}},{id:MinecartCommandBlock,Command:setblock ~ ~-1 ~1 redstone_block},{id:MinecartCommandBlock,Command:kill @e[type=MinecartCommandBlock,r=1]}]}]}]}