Welcome Davin!
Glad you made it.
Sounds like great progress so far.
Hopefully you can get the wiring sorted out.
Thankfully you won't have any ignition to deal with, but there are many cab harness differences from the gas engines.
Jim,
Lil'Red is a '87 F250 HD, 4.10's, 1356 4x4, Zf-5, 3G, PMGR, Saginaw PS, desmogged with a Holley 80508 and Performer intake.
Too much other stuff to mention.