good morning,
Have you found your rims yet? I have 2- one is regular HT, the second is for the M-8/20 series that has a bit deeper hub, but would work... one has original bolts to attach ring, the second has new bolts- a bit larger, but they work.
I also have 2 never mounted STA 8.25 X 20 tires, with flaps and tubes, too....... pics available!
In Michigan- Sold my last HT- need to get garage back for this winter!
Keith