You're over-complicating it in your mind, causing the stress. How "original" do you want it? If originality isn't important (and it sure isn't to me), get ANY standard hot-rod wiring kit, then take ONE system at a time and wire it. I like Kwik Wire over Painless for many reasons, two of them being cheaper price, and they are located about 1/2 an hour away from me, so help is close by!