i've restored a number of rar chewed barn finds and found that repairing a harness is a waste of time and will only lead to further problems. it is best to duplicate the harness if not able to afford new replacements. this isn't cheap either because to do it properly you'll need a lot of different wire colors, but in the end you'll save considerable money. do not use crimp connectors. a harness with 50 crimps has 50 problems. solder everything. you will find that the connectors on the original harness can be unsoldered and reused so basically you are replacing the wire. if you have to vary from factory colors, do so but draw a new wiring diagram as you do it.