Canada to Galveston, now that's a ride. I would look for a bike that will sit you a little more upright than leaned over. A 600cc bike will be a suitable size bike with plenty of power for 1 person, decent fuel mileage(mine rarely dips below 40mpg, lower insurance rates, lower payments, and reasonable power when riding 2-up. Are you short - under 65"? I would sit on many different bikes and see which feels the most comfortable to you, one that you can touch the ground on easily and with both feet. If you do find a deal on a bike, check with Corbin for an aftermarket seat with a lower and wider saddle. Corbin's seats are atleast 1.5" lower than the stock seat. Will you be making the trip alone? That is a long way to go without anyone.
Pete - one of the moderator's lives close to Galveston so maybe we can get him to come along on the Campwood run.
looking forward to meeting/riding with you, let me know if I can be of any assistance.
2000 Katana 600
38 speeding tickets and still counting