My tire dealer won't mount new tires on my 1950 GMC two ton chassis. They don't like the split rim or all the corrosion. I want to retain the five bolt front and ten bolt rears. They told me rims are available and that I could weld my hubs to them. Any ideas? Also, radial or bias ply 8.25 x 20's? I hope to drive it a lot with decent loads on the flat bed and a trailer.