Hi new to the forum. I have a 1985 mack R600 that I am currently in the process of rebuilding for use as a workhorse on our farm. have recently replaced the cab as she was shot from years of work as a water carrier. New cab is solid however was stored in a shipping container and the wiring is shot. had it checked by a skilled auto spark and it was deemed irrepairable, wont even take solder disintergrates on contact, the price of a new wiring harness from mack is obscene! around 5k! to this end I'm searching for any leads regarding a serviceable secondhand or after market wiring harness or even a wiring diagram so that a harness could be produced. thanks
