I picked up a cheap dolly[no, not what you were thinking!] and a pair of wheel barrow wheels, which I switched for the regular 6''wheels that came with it.I needed a longer axle to accomodate the larger wheels so a trip to Home Hardware got me a piece of 5/8th round stock,which I drilled for the cotter pins.A 1''piece of 3/4 copper pipe made a spacer to clear the wheel from the support bar.Now I have a large wheeled dolly that can be pulled over rough ground.I will probably weld on a couple of sockets on the bottom of the dolly so as to to slip in a U shaped piece of pipe so the l can balance the load, or provide a way of two people to handle it.