I have one of those stripper pole stages that is 4' x 4'. I would like to put wheels on it so we can pull it along during a parade at Decom. We also have a dancing cage that is about 4 x 7 and want to do the same thing. My question is, where can I get wheels and axel? The ultimate would be something that has bearings, like a small bicycle wheel, because it would be so much easier to move. But I don't want to spend crazy money on it cuz it's just a one-shot deal. We also thought about putting castor wheels on it, but we would then need an ATV to pull it. Any ideas for a fairly cheap, fairly easy-to-execute solution?

Thanks