You may need to get a Corbin or Triumph touring seat. Corbin makes a backrest for the solo seat. If you're hunched over you may want to invest in pull back risers for your handle bars. They'll help bring the bars back. You could also go with buckhorn bars but you'd have to get used to the handling. As LJ mentioned, the Memphis Fats with lowers is a great combination for eliminating buffeting.
