Next I plan on tackling this monster of a wiring harness. Luckily the wrecking yard that pulled it left it all completely intact. I was able to find some schematics after sorting through 900+ pages of wiring diagrams that will be helpful for making this a standalone system. It looks like getting the computer tuned for standalone will be around $250 so thats not terrible. I'll be making my own system of fuses and relays, with some luck this will only be a few hours.