Brillman Co. has a great selection of cloth braided wire and asphalt loom. That where I order all my stuff. If you need me to swing by one evening just holler, or you can come by the house and take a peek at my ol' M and see how I done it. I didn't use the "correct" colors on my M, I used what I thought looked good for the wiring exposed at the lights, distributor and coil. Everything else is pretty much hid inside the loom.
Member IHCC Chapter 37 & 42 - North Carolina