I would tell them you are going to pay for an independent inspection and assessment at their site. There are many RV inspectors and or RVIA certified technicians that would be happy to go do an on site inspection. It may be a good deal especially if the price is right. It is common for RVS to just sit unused. You should negotiate exactly what will be replaced by the dealer after the inspection. The things that I would be conc about are, tires, batteries, fluids in the engine, generator and transmission. Be sure that the freshwater lines have been blown out and system sanitized. It is common for RVS that sit to have nasty gunk in the freshwater system if it hasn't been cared for.
