I have a standard '09 R12GS to which I added the GSA side racks and OEM side cases, plus Hepco Becker crash bars (motor and upper) plus PIAA lamps attached to the upper crash bars plus winglets on the fairing plus a Sargent low seat plus a Z Technic windscreen.
Expensive, but I am really not tall enough for a GSA and I did not want the extra weight of more fuel either. I would have liked the lower (9% I think) first gear though.
Essentially, I got my GSA -- but by using the GS I can fit the bike better.
A gun is like a parachute. If you need one, and donít have one, youíll probably never need one again