Need Help! Need Engine/lights wiring harness info/ideas!

Clarification: The engine wires that are torn out are in a box unlabelled. The front lights wiring is all still in place, just cut off the electrical box. So, it's really just the engine wires themselves that I don't know where they go, but even then, I can tell what most of them are by the end connectors. The ECU, alternator, etc connectors are still in place, so those are obvious for example.

I'm sure if I just had a good engine/lights harness to start with, I could make it work, no problem. I'm confident enough to do that.