A little late to the party here, but here's my 2 cents worth. First, don't buy casters with 10" pneumatic tires from HF or Northern. I built a low slung dolly for my snow plow (total wt. about 800 lbs.) so I could store it in the back yard. I wrecked two sets of casters, one 10" & one 12"; they are junk! Secondly, on the cost of home built vs store bought, I recently bought a 6' rake from TSC and wanted gauge wheels for it. TSC's price was kind of high, so I searched online and found a set made by Tarter for this rake for $185 from Rural King. I also have a 4' rake from Craftsman which mounts on a sleeve hitch for Craftsman garden tracters. I would like to adapt this to a 3 pt setup and will be looking for a way to use the same gauge wheels on both rakes.