Wiring sources

I have done a number of internet searches for wiring with the original colors and tracers that Mopars had from the factory. I have found nothing, but pre-made wire kits ($$$) and generic wires with basic colors.

Because I will be modifying the wiring of my '68 'Cuda on assembly, I have been wanting to steer away from the $$$ kits because of this. I am seriously considering making my own wiring bundles.

Does anybody know of any sources for these wires and associated connectors?