Is the stock original to the rifle ,check the serial in the barrel channel and the hand guard ,also it should have a waffampt 135 on the right side of the stock near the hand guard ,.check serials on all the small parts rear site ,bolt head,etc.if everything matches on the rifle except the bolt then it should add to the value .
I would estimate a value of 1000-1200 for a legit bring back.
More detailed pics of all serialed parts would help to determine value.