There is another way. I have a corbin seat "pushed forward" an inch and Kuryakyn stirrups and flat pegs. I'm 5'6" and this set-up is perfect for me. You will have to mess with the stirrups to keep them from spinning. A few ways to do this are on the site. In the end this may not be less dough but you'll also have a much more comfortable seat that keeps you from sliding back when shifting, braking or cornering.
Scott