I’ve got a tank made from a 55 gallon plastic barrel. I’ve used it to remove paint and rust from every part of a cub except the rear rims. The torque tube required flipping end over end to get it done. I’ve thought about using an IBC tote with the top cut out to make a tank large enough to do the rims but haven’t done it yet. I consider an electrolysis tank a must have if you are going to restore anything made of iron or steel. I’ll never be without a tank as long as I’m messing around fixing up old tractors. I’ve always just used rebar for anodes because I’ve got access to plenty of pieces for free but it’s sounds like maybe I ought to try some flat stock instead.