Complete bolt $200-$300 unless you ran across a deal. If you dont have it already bottom metal will put you back about the same. Modified stocks can be had for $100 or less if you dont mind poorly fitted recoil pads and refinishing. An untouched stock $250 up. Be sure any stock you get is cut for the cloverleaf tang.
What's the 1st digit of the s/n? Cant quite make it out in the photo.