These look to be similar to the wheels at Harbor Freight, but at the Canadian Equivalent Princess Auto, for teams that are interested.
http://www.princessauto.com/en/detai...ly/A-p8442410e. The unfortunate thing is they don't come with a bolt circle to adapt a hub, and like the Harbor Freight wheels, the tire (2.8 x 2.5-4, whatever that means) does not appear to be compatible with the AndyMark hubs (200x50), but I would love to confirm.