I have a lead on a 7MM SAUM Remington 700. It has a stainless barrel. It has a Leupold 6-18 scope on it. Nice gun, fired 40 times or so. I am curious on whether I should pursue it? My understanding it is a short action gun, so is it at all possible to rebarrel it to something more common if ammo gets too hard to find? Like a 308 Win? It is coming with 100 rounds of fired brass, and probably 40 rounds of factory Remington ammo. What should I pay for it? Its in excellent condition. Thanks!