vinconco: I could easily go with what the 30-30man said and his estimate of the price may be in the ballpark. I have one I brought back myself, minus the paperwork as we regularly shipped footlockers full of stuff back to Ft. Bragg.
I did not bring mine back for nostalgic reasons, I brought it back to have a functional, reliable and hard hitting semi-auto rifle. However, I found that mine had chamber pits and wouldn't function reliably with anything but steel cased ammo - which I have a lot of...............
The paperwork adds significantly to the collector value and there are lots of guys who would pay the estimated price to put one of those things on their wall. HTH. Mikey.