One thing to look out for in a new wiring harness.
The common modern mass produced wiring harness is made (wire sized) for 12 volts, V8 engine and a 70's to 80's style steering column. The kit will be plug compatible to some modern conveniences but if you want to keep your old steering column and clamp-on turn signals, you will have to purchase the mating plug parts separately and figure out the wiring yourself.