One other thing you can check into is the depreciation of your RF, if you use it for a business. I know of people that use there class "A" motor homes for rescue work like the Greyhound rescue and adoption agency and then there are others that advertises there business on there SUV's. I believe that there is an allowance for fuel, maintenance, and mileage. That's one of alot of things we were able to deduct was the us of ower Suburban When my wife was doing in home daycare. It might be worth checking into.