Traveling in a 41 foot MH this fall from Tuscaloosa Alabama,have 16-18 days plan to stay in West Yellowstone for 7 days .Would like to see Mount Rushmore and Devils Tower enroute then hope to stay near the Tetons to visit a day or two then home.First time trip and would like suggestions/info on places to stay/see enroute.Dry camping is an option.2 adults and 2 dogs. TIA