Thank you both. I did not compute that the 19.5 tire would be so much smaller and completely agree. That was a close one. The link to the bus project by Fred is very helpful. I was starting to go down the adapter path but got scared off. I guess I have to source 235/80/22.5 tires - expensive but look good. I have found black steel wheels 22.5 x 7.50 that would work with adapters that go down to the 4.75 diameter. Adapters are expensive at 1200 for a set of four but running out of options out there. https://buytruckwheels.com/products/22-5x7-50-jantsa-8x275mm-hub-pilot-4-hand-hole-black-steel