1989 wiring harness?

[GTGMJ]

I've been trying to get my 1989 Comanche sorted since buyng it months ago, but there have been electrical issues to to frayed/burnt wires. I'm new to the forum, so I can't reply to 88mjsally's post, nor can I send a message. However, I'd like to know if getting that used 89 4.0 auto 4wd harness is a good idea, or is there a better alternative? I know a lot of people rebuild old cars and trucks, and I can't believe they would put 30+ old wiring into a new build. Any help would be appreciated. 

[jdog]

FYI you can send a message after your first post. with that it all depends on what your plans are. if its a stocker/daily i don't see an issue with that as long as the harness looks good. however if you are doing a ls swap then an aftermarket universal kit could be used.