Look forward to your conversion. I have a USAF Civy K3500 Crew Cab so if you need pictures of anything let me know. The engine is out too.
If you could come up with the front hubs for the front axle you could leave the rear end a dually and make a M1028A4
Are your battery cables still unbutchered from the firewall terminal block to the batteries in the CUCV and if so would you be interested in selling them?