95 5.0 Into 86 Coupe Questions

I have a complete 95 5.0 car in my driveway, I mean everything, complete car. I'm fulfilling my long-standing dream of dropping the motor into an 86 notch roller I acquired. I've read a few different things. I've read that I can use the whole harness and computer from my 95 and it's not a pain; I've read that I should use an 89-92 Fox harness and computer on my complete 95 longblock and accessories but splice a few wires, but what would I do about the electric fan? Also, I want the dash wiring to be as straight forward as possible, the 86 coupe has all body and dash wiring in it, just doesn't have engine wiring. I've also read where people mixed and matched some fox stuff with some sn95 stuff. I want to do this right, but as cheap as possible. Poor college kid. 95 has the Cobra J4J1 computer and complete engine/accessory/fuel injector wiring harness.

What's the easiest way to do this? For those of you who say to swap my entire front accessories over, that's not happening, I know enough people bolted their 94/5 motor right into the fox and use their accessories. I'd rather splice some wires than hunt down brackets and accessories and timing covers. My questions are wiring related, I already have a fox intake and TB. Anybody with any experience regarding this matter, please give your input on this. Thanks!