so next up was tackling the engine compartment wiring harnesses (as you can tell there is no rhyme or reason to my order in doing stuff sometimes, just depends on what I feel like that night lol.)
I removed all of the original split loom, and shockingly the harness had never been messed with. Other than a lot of dirt inside the loom, there were no cut wires, no damaged insulation, nothing. It was all in perfect shape, so I just wiped down all of the wires and put new split loom on all of it. I'll end up modifying the light harness when it all goes back together and add relays near the lights and set it up so that when the high beams are on the low beams stay on (not a fan of the either/or setup with a 4 headlight truck)