I have a F800GS that I am looking to sell, year 2009, mileage is at 37k so not particularly low, but the bike has never missed a beat. Full vario luggage set plus small tank bag.
I just sold my low seat separately, so it comes with the original seat unfortunately, but for reference I am 5'6" (female) and the low seat was great, although I manage with the standard seat too. However, with regards to the seat height it's more about the inseam rather than height.