I have always been a fan of the smaller caps. Sounds like you need to just take the plunge and get some new tires. Then painting the rims would be easy.
Meh. I could get new tires. But this truck saw ~2000 miles this year. I can discern no tire wear. The tires are going to die of dry rot before I wear them out. Why would I take a set of new tires and condemn them to this miserable death?

If my usage patterns change, new tires just might make sense. But if I buy new tires, they're going on the CUCV rims. With the hub caps.






