Wire harness on 66 Chevy

[sstpeach]

Ok so I'm looking at all the magazines for wire harness replacement and thinking how pricey is this stuff. I also noticed they do not sell any of the plugs (male & female) to remedy an old worn out broken connector in your truck.

So the question is why cannot I just replace each wire harness myself with the appropriate gauge wire and new fittings per my wiring diagram? Has anyone done this? Where did you find the fittings?

With that said, I bet the savings would be at least 80% of what they are selling replacement wire harnesses from the classic restoration places.