Godon,

It sounds like you are going to have a great trip. The campgrounds in Yellowstone do book up early and are very crowded. There is a motorcycle campground just outside the east entrance of Yellowstone that is very nice and reasonably priced. The name of the campground is Wheels of Wonderment and it is in Wapiti, Wyoming. It is a great place to stay and the couple that runs it are very involved and very social. It is also close enough to the Beartooth Highway that it is an easy day ride from the campground.

Just a suggestion but it does allow you to experience Yellowstone and the escape the crowds in the evenings.

Have a great trip
Az Wingrider