What to ask for a GS

I have a 2006 1200 GS in Desert Yellow. She has no agent FSH but i do have proof of the 30k service and it is now on 37k. I will do 40K service shortly. New Anakee tyres, headlight guard, bash plate and BM Topbox. The bike is in good condition but the Topbox has seen some action but is still servicable.The bike also has Hepco crash bars, they are scratched, but that is what they are there for, not a mark on any of the panels.

Can anyone tell me what i could realistcally ask for her, I am getting conflicting values and I would like to get an idea of what I could advertise her for.

Is 76K too optimistic?