I am not skilled enough to make my own wheels. The R & P wheels seem to be good, I only had a couple of problems that were easily fixed. First the small nails used to hold on some of the metal around the hub kept falling out. Could have been our dry climate, I just replaced them with small round headed screws. Also they used a piece of 1/2 inch pipe though the hub to support the axle. They were cut to short, not cut square on the ends and beat out of round. I replaced them tubing which worked out good. When you consider shipping they cost close to $400.00 for the pair, and they shipped fast with an email to me when they shipped. Next I will see how they hold up to firing. My wife has a couple of minature horse so I'm considering building a limber next and making them earn their keep.
Robert