I once rewired a racecar engine loom with red 18gauge wire and used different colour heatshrink to differentiate power, ground, signal etc.. also happy to answer any questions.
18 gauge! Thats the big leagues. We rarely go that big, 22awg is big for us. I salute you sir.
Haha we had one roll of wire and it was 1am so we made do, I would have much preferred something a little more suitable. But hey you gotta do what you gotta do.