Well, youll need quite a bit then Id think. Maybee you could limit yourself to a handful of colors. I used 12 or something, but I wanted to retain the factory colors where I could for lights/wipers etc.
You may be better off just spending 150 bux and setting yourself up with a nice set of wire like I did. By the looks of your project Im guessing this wont be the last time you need wire. Its not like it goes bad.
Dan