Looking for complete wiring harness recommentions

The 68 fastback Barracuda I have has a lot of potential. The wiring looks to have been done by someone with a lot of electrical tape and not a lot of electrical sense. The underside of the dash is a crime against humanity.

So what are your go-to's vendors for a complete wiring harness, with expansion options for things like EFI?

If u got the coin , go w/ a mopar specific re wire , most kits are chevy based ---------I used an ebay E Z kit , had to change all the ends and steering column to mopar , a lot of help from Sean at E Z , works good , was pretty neat , till I switched to fuel inj , now it somewhat of a mess in places , but has worked excellantly so far.