Rebuilding a 68 Cyclops and need at least one, one piece 6" steel wheel . Wheel dimensions are tire bead /nominal diameter: 6" , overall width 4", with 1.37" o.d. diameter hub,also 4" wide. I have searched with no luck for a new one on the web. If you have one or know where one can be found, I am in need. These wheels look like wheelbarrow wheels, but I have not found one in 6" diameter.