67 C-20 8 lug to 5 lug questions

[67C-20/2WD]

Hey all,
This is my first question to everyone. I'm looking for the cheapest/easiest way to convert my 67 3/4 ton 2wd truck to 5 lug all the way around. The front is easy, it's the rear where I have questions. The truck has a Dana 60 8 lug rear-end. Should I just find a 5 lug rear-end and swap out, and if so what truck should I look for to find a 5 lug rear end? My rear suspension is the a coil spring set-up, not leaf springs, so that may complicate a rear-end swap. I don't know. Any help is appriciated. If possible I'd like to retain the Dana 60 since it's already under the truck. I wish there was a better selection of wheels for the eight lug hubs.