Hello thank you in advance for reading and seeing if you can help!

I own an 02 2500HD 6.0/4l80E 4wd floor shift base model, I bought a donor for the swap... a rotted out 02 2500hd 6.0/nv4500/ 4wd floor shift. (Both are reg cab long bed) Ive just about pulled everything from the donor I believe...
so now you’re up to speed on my plans, my question the harness on the donor is rough. Bunch of the tabs on the clips are broken and some wires cut (before I bought it) do I need to swap harnesses? So far I’ve grabbed the computer, steering column, clutch pedal, engine, trans, tcase, crossmember and drive shafts. Thank you again.