Like kbailey I mounted my seat all the way against the center tunnel, I also mounted my seat to the floor in the back and on the support on the front. Using a Kirkey seat with that wee little bit of padding, my butt is practicle on the floor. I'm only 6' with a 32" inseam. The other thing you could do before going too far is to buy your seat and mount it and see how you like the fit.

With the seat towards the tunnel you do have to drive with your hands a bit to the left, but I don't even notice it.