The other day in harbor freight I saw a nice 'wire storehouse kit' it was something like 15 spools of different guage and color wire. That would be great for rewiring your truck. While yer there, pick up a connector kit and some shrink tube to make bundles of wire for the different areas.

'51 Chevy 1/2 ton w/'62 261, HEI, offy, fentons, dual carter/webbers, t-5 & 12 bolt posi