By all means spring for the new tires. Also, I agree with others that it should be the last thing to do on the project. Would strongly recommend the 7.50/20 size. It gives the truck the classic, original look that I wanted on mine. I had no trouble finding a shop that could deal with the wheels although it cost me because of the time they had to spend unfreezing the snap rings. You can see my truck on the gallery page under George Berry's 46 Two Ton.
