7000 miles is nothing and $11500 is a great price in my opinion. I would jump on that f6 and don't look back. As for the seat I have the ultimate king seat and love it but I haven't sat on anything else to compare it to. I also have the driver backrest but only used it once on a trip. Not a real fan of a backrest but you can adjust the backrest to slouch or sit upright it all depends on how you sit in the sadle. the ultimate will also sit you up about an inch. I have the Honda tall windshield and at 6ft3 I can see over it just fine. I personally don't like looking through a windshield I might be getting a madstat this year. But anyways 11500 sounds like a great price to me. Good luck and I'm sure you will enjoy the f6 if you buy it. Keep us posted