RV Vacation Rental Trade for Transporting Used RV?

There are companies that transport RVs for a living. El Monte and Cruise America come to mind. Otherwise, everyone would have to buy their RV at the factory. They have the proper liability insurance and use drivers with a commercial license. And the drivers can't use any of the facilities while in transit. That's one of the reasons that you see those units parked in motel parking lots.
You're potential liability isn't worth it.