1990 k2500 6l swap. Cleaning up tbi and old pcm wiring??

Hi currently getting ready to drop my 6.0l in my truck. is anyone getting rid of the old pcm and or cleaning up all the extra wiring. Im not building a show truck but I don't want a mess of extra wires kicking around. I have all the wires marked I need to save I just don't want to clean up extra wiring and have my dash or interior not function correctly after. Any info appreciated .

I just finished a wiring overhaul on my truck. Moved the pcm to the passenger side just in front of the overflow tank. It was a lot of work. Looks awesome though.

doing a similar swap... hoping to do a write-up on the wiring... kind of a step by step guide would a appreciate any help