Painless wiring kit?

[ShinyC10]

Hey guys, been wanting to order a complete new harness for my Chevy. I’ve had electrical issues somewhere throughout my truck for a few years now and have some figured out a way to stop my battery from draining over night but I had to put a battery cut off switch, sucks when it rains. Also, I’ve been putting off rust repair soooooo long that it’s too far gone so I’m gonna do a cab swap. I figured might as well do a rewire kit when I swap the cab out. Has anyone used a painless kit (10202# 28 circuit universal kit) for there squarebody. I figure 28 circuits is more than enough, might as well have more than I need than not enough if I want to add something . I have a few aftermarket electrical upgrades (radio, amps, subs). Was wondering how close this would be to the original wiring.

Thanks!