I bought an old coats center post for $500 several years ago. It’s paid for itself in tire changes already. The problem is that the old style tears up the beads on older tires and they will not seal back up. I’ve got lots of project cars and I save tires to mount just to have as roller. When I buy or sell a project car, I always need tires to roll it. I don’t think the the newer style rim clamps will tear up even older tires so I would look for one of those.