You guys have no vision of what is possible. That would be a prototype to see if it's feasible. Looks good to me. Like any prototype, it needs tweaking. Tracks, for deeper snow. If it gets below 0ยบ out, should be OK as it's stored in a garage (maybe in need of a space heater?), driveway looks small and should be able to plow it in minutes. I think he was plowing the sidewalk just to see what it can do, but even then, if it's just to the neighbors driveway, no problem! He should put a pole on it with an amber strobe for liability reasons though. He also needs to find it's maximum snow depth. Otherwise, he will need to plow twice. While sitting at his workbench monitor. No sore back. Sa-weet!!