Mileage? Engine mods/maintenance? A buyer's gonna need to know.
You obviously won't get back what you put into it. My XX is almost exactly the way I like it (will do some suspension mods in the future, but it rides fine for now). But I'm changing my Kawi Z750S to fit me better, and those changes are expensive. I sure hope I don't regret it later (I probably won't, but the process is painful).