I put a class 5 hitch on mine and found a "like new" Trailer Toad and love it. I talked to Bob Jones who owns a trailer dealership and he said go with this model. I almost ordered a new one but after talking to the guy that owns Trailer Toad he said I could go with the older smaller tired model.
http://www.trailertoad.com/



10,000 pounds is a lot to tow so you may have to box the rear frame section too if the motorhome has the power and the braking ability to handle the weight.