If you can physically inspect it, look for wear - is the action loose? Is the top lever to the right of center? Is the forearm loose or rattling? Those would be no-go signs. An 89 Citori at 850 isn't a bad deal if it's in good condition. If this is a field gun, then, like most field guns, it was most likely carried a lot and shot a little; if it has no rust, and you want it, get it.