Don't worry about it too much, man. I pulled the L28 in my car last monday and spent all this weekend working on cleaning up the engine bay. The factory wiring isn't all too bad. Most the accessory stuff (headlights, etc.) are in one harness while the FI and engine components are in another. I think I'm getting it all figured out, so don't worry too much. I'm only 17 so if I can do it, I KNOW you can!