Being from Montana and worked for the railroad in the areas you are mentioning, I would say that at best you are going to be able to use a RV for 6 months of the year. Then you will be in motels from October to the end of March, maybe even April. The money invested in a 5er or a travel trailer (TT) will not be offset by your per diem savings. It is a nice idea, but not practical considering the initial costs of getting a RV and equipping it. Of course this is based on my premise that you don't have several ten thousand dollars bills lying around with nothing to do. LOL