Thanks to all who have shared their views with me. Blue Ox is a bust, but the knowledge that Roadmaster has a base plate is encouraging. I wasn't able to access very much from the Roadmaster site. I'll go back and give it another try. Roadmaster is on the West coast, so I can phone them and perhaps speak to an actual person. In my youth, my father and I had to tow our own vehicles home for repairs when they broke down, so I know the old manual transmissions were towable. Electronic traction controls and etc. on modern vehicles may present other problems, but I need to eliminate this vehicle before I can move on to something else.