Tell me about Painless wiring for Mopars???
Not a cheap solution, but I bought a factory style harness for my car from Year 1. The dash harness was *about* $550... with the forward harness and taillight harnesses coming in at about another $300. I pulled them out of the box, and laid it all in place. Everything fit, it had a reproduction fuse box, and all the connectors are there. Nothing had to be swapped. I also ordered the forward engine harness modified for the later model alternator and electric voltage regulator. Nice, simple, clean, but ex$pensive.
As a side note: Rick from Laysons made up a custom set of battery cables for me that are longer than all the factory offerings so they will fit around the TTI's headers. $75 shipped to my door. And they are BEAUTIFUL!