Hy Dehartb, welcome, I hope you have read the "Wheels and Tires, what to do" sticky at the top of the Big Bolts forum on this board. You have already done a lot of research and you seem to understand what is required to make modern tubeless wheels fit on your truck. Some on here will advise against adapters, and if you are going to use your truck to carry the kind of loads it was designed to do, I can understand their apprehension. Wheels and tires are a major expense, add to that the 10 on 7.25" bolt pattern which would have to be adapted to use 20" or 22.5" wheels and tires. There are 19.5" wheels available with the correct bolt pattern, most think they look small on our trucks and you would still have to have spacers/adapters made for the center hole. Good luck with your search!