I'm sure that y'all (it's a Southern thing) have heard about Painless Performance before, but just in case you haven't, maybe check them out for a custom made wiring harness for your individual application, or start with one of their basic kits and go from there. http://www.painlessperformance.com/

Of course maybe you're both just a glutton for punishment and want to do your own wiring harness from scratch one wire at a time. Just thinking about that makes my head hurt.