Chief,
If you don't already have one, get a good seat. Test the different ones out. I have the mustang with the backrest and am very satisfied. Some riders prefer other brands. I think this was the most significant improvement I have made to the bike as far as long distance riding goes. I was getting lower back pain out of the stock seat after about 100 miles. The return trip from Americade was right at 1000 miles. I did it in 2 days with no seat related problems at all.
Dave