manufactured by Springfield Armory with a S/N of 399XXX
That is a low number rifle and shouldn't be shot. Having said that, if it's as good as shape as you say, I would value it at $750 Plus, just as a non-shooting collector piece.
If I was you, I'd go to the Bolt Action forum on the CMP web site and get their ideals on the value, I bet you'll find its way north of 150 even $300 bucks.
That would be a place to sell it if that is what you want to do.