We are headed to yellowstone from ky in a rented rv for two weeks in less than a month. Plan to stay in west yellowstone for 3-4 nights and rent a car for sight seeing. I like the suggestion of coming in thru Gardiner on our way to west yellowstone as we plan to come in from the north and return home a more southern route. Will that work in a 27" rv in late Sept? Do you recommend a specific campground? our last night in the area will be 9/30 or 10/1. It appears many of them close on 9/30. I would love a good intinery for our stay in yellowstone. It will be my husband,19 yr old daughter, and me.