2000 miles, 11 days works out to less than 200mi per day. Should be no problem even on the stock seat. All the above suggestions are excellent. Good seat or seat pad, backrest?, quality rain gear(nothing worse than riding with a wet/sore azz), feet postion -floor boards, mid-pegs, hiway pegs, kury switchblades. and something to relieve the pain/ soreness- I like flexall and Ibuprofen.