600 any probs

[darrsi]

Most of us have double standards re mileage, I'm happy to own one at 38000 but I would not buy one

Also check the fairing infills line up properly, can be a sign of of a crashed bike

Depends how much info you can get hold of i s'pose, there's bikes on this forum that i know just as well as my own, so you know that they've been looked after and 40k would certainly not be any problem at all.
Unfortunately we're not privy to this sort of info elsewhere so it is all a bit of a risky business.