70' Dart rear wiring harness

Hey Guys, Does anyone have an extra rear wiring harness for a 70' Dart Swinger laying around. I previously posted a forum about my rear brakes and reverse lights not working. My pedal switch is good but I don't have any power at the rear lights. I followed my wiring harness towards the front and it doesn't seem to be in the greatest condition but not sure. I'll try anything at this point. The turn signals, emergency flashers and parking lights all work. Let me know if you can help out. Thanks Dave!!!!!!!!!!!!!!!!