Thanks for all the ideas guys. I think I may look into this. I live near Atlanta so there should be some tire shops that can retread them. It's on my back burner for now as I'm kind of swamped (just bought eight pallets of electronics from Public Surplus) but I thought I'd stir up some opinions and ideas. If I can make a few dollars (or even one!) on tires on the side of the road, it may be worthwhile.