Alright, after analyzing the scope of how bad the rear harness was.. and not wanting an electrical hazard while cruising with the family.... we decided to order 2 new harnesses and a set of grounding straps. The first harness is the one that runs from the front of the firewall down to the inside of the frame and to the rear, as well as the harness which then connects to the tail lights and license plate light.
The previous owner cut and spliced back together the current harness countless times.. sometimes with butt connectors, other times with bare wiring wrapped around each other and covered with electrical tape
Waiting on parts..