FB, I here that I see WAY TOO MANY just like that, squating from the weight. I hate driving behind them, thinking the next bump is going to be the end of that thing. I don't know of how to build a wheel system, but I'm sure someone here can help you out.
Three-fourths of the Earth's surface is water, and one-fourth is land. It is quite clear that the good Lord intended us to spend triple the amount of time fishing as taking care of the lawn. ~ Chuck Clark