Replace all wiring?

I've rewired my Demon with Painless #10127 Mopar 14 Circuit kit and it was easy and straight forward so far, its just time consuming is all. I bought it before researching others and I think I would have went with AbodyJoes suggestions since its less $$$ and has good reviews. I have finished all lighting and tying in gauge panel. I still need to finish ignition section.
I believe a complete yearone one factory replacement gets pricey, $800-900. I paid $420 at Mopac for mine, and $120 for the gauge harness for autometer (or other aftermarket) gauges which made life easier.
Wiring is tedious and no friggin fun, has no "WOW" factor for the time you spend on it,,,but if done right you will never have issues.
Definately go with new stuff of one brand or the other, reusing that 40 yr old harness or any part of it will be trouble later. My $.02