I can't speak to the cost or effectiveness. I have seen very large boats totally shrink wrapped for transport, so I suppose it can be done if you can find the material and/or installer. My comment is that I would think it cheaper and easier to rent a storage building for the season, or buy a RV cover. The shrink wrap is only good for one use, right? Also, you would preclude any access to the coach during storage.
'09 Pleasure Way Lexor, Chevrolet Express 3500 chassis, 6.0L V8
Last RV, 2005 NRV Dolphin 5342 (2007-2014)