If you are waiting to hear how we made out - the result was not good. I guess I should have included the make/model RV we had. It's a Class C Forest River and we were told that the combined weight of the tow dolly (??lbs) and the Chrysler Town & Country (4477 lbs) would be way too much. The hitch on the RV is rated 7500 lbs, but we were told not to exceed 5000 lbs. Any comments would be appreciated. Oh, and we were told that if we go to a light weight vehicle and use tow bars - the labor & material cost; base plate, brakes, electrical would be $5,000+.