There are plenty of 10x7.25 wheels available in junkyards and from used truck parts dealers - but they're going to be 19.5" rims and have a 5.25" hub bore. So you'll want to be sure that the 19.5 will fit over your drums before a set (they didn't fit over my drums on my '47), and you'll have to have a machine shop turn a set of hub bushings.
