65 Barracuda Complete Wiring Harness New?

I just read a Hot Rod article on-lne where they "upgraded" a 65 Barracuda with the Painless Performance kit. What disturbed me a little was the splicing required onto factory connections. Hell, I can replace all the wires with new and splice in the connectors myself (or I could employ one of the many Mexican local stereo shops to do it for me here for a dance and a song).