Sounds like you have found the place 48Loadmasterguy. I was gonna say that if you can't find anyone, there is a tire shop here in Jarrell that will do my tires on the '46.
Are your rims really "split rims?" My front tires have the outer ring, but the rims are not plit down the middle. I would be inclined to replace something that is really out of date like a split rim.
