I have a 1953 GMC 3-ton with 9.00x20 tires. The back 4 are badly cracked and one needs a tube. Front tires are okay, with one nearly new. Can't afford the new ones, so I have to look for used/second-hand. Otherwise, some different type rims, for more common tires, that fit a 6x8.75 bolt pattern.
I'm in Saskatchewan.
(I already tried the wanted forum, but feel that part isn't popular enough. My tires are getting really bad.)