Thanks 3B, I wholeheartedly agree the with the right amount of $$ you can do anything! There is a big truck wrecking yard near us, and I was planning on checking them out for 6-lug 22.5’s, hubs, or newer axles. I have found several adds for 20” military 6-lugs split rims but I would have to piece them together to get 6 wheels. I’ll do some research on the 10-lug hubs from ‘59 to see what the differences are. Like I mention, my ultimate goal would be to have the truck cruising highway speeds without running 3,000+ rpm!
Good news is that as much as I want to drive it, I’m not in a rush, so I can avoid buying the wrong parts!