...... Sorry, but the harness for your machine will cost you a tad more than the $200 for an older machine. Depending on what harnesses you require will determine the price. There are about 4 harnesses for the newer machines. On a burnt machine i had, I was going to re-wire them from a schematic but gave up on that idea and paid the few hundred dollars for 3 harnesses, it was worth it for the time saving alone. The Forth one i did wire up on my own, it was only 20 odd wires for the Aux hydraulics/park brake, so not too complicated. The other ones, i didn't even try.
Good luck with it, which ever way you decide to go. If you have patience and can use a soldering iron, you could repair/replace the bad harness section. Just take your time and use the wiring diagram in the book. I made copies and hit the connection numbers and pin outs with a hi lighter to keep track, it may help you if you go that way too.