This summer I am planning a trip to Yellowstone on my F800. Starting from middle America heading north to South Dakota then across to Wyoming down through Colorado and back. Most of the trip will be on the interstate eating miles while several days are planned for the dirt. I've added a few farkles, windscreen, luggage, bash plate, and crash bars. Sifting thought numerous posts, some 2 years dated, I am trying to figure out if there are any "must do" addons or recommendations along with parts / tools I should carry. I have the tools and know-how to fix a tire and a few minor repairs. Some stated carrying an extra antenna ring, chain bits, beer fridge, etc. A few previous suggestions have had supposed factory fixes since posting. I'd like to keep things minimal. What would you carry or change for a long mixed interstate / dirt trip on an F800 GS?