Instead of Home Depot, try looking up your local Restore shop. It is run by Habitat for Humanity, where they sell donations that can't be used in construction. It is the fund raiser for the program. I bought a screen door for my home there and it only cost me $10. We have 3 near me, and they have every style of wheel you could want. Even if you figure in the gas, you will still get an extreme bargain. Good luck.