Bring Back Mauser
Not a bad looking gun but looks rebuilt. The stock isn't correct and looks more like an earlier ar 42 style. But for every rule there is probably an exception. It's possible the gun was re-stocked and got changed to an earlier style. In 1944-45 they used what was available but the large numbers on the stock are post war or occupation firearms. The gentleman might have picked it up after the hostilities ended, because the men didn't just climb on the first flight home like now. Your 98 is probably as good as some of the Soviet rebuilds and would be worth as much.
I just received a K98 today and it's an "ar 43" some mismatched parts and needs a new floor plate because some one didn't know how to remove it and left some nasty marks. The stock is correct but has the numbers stamped into the side of the butt. Everything else seems correct bands, and other parts. I will have to clean the grease from the bore to give it a grade, but is a good example of mid-war manufacturing.
I also received a Brazilian Model 1922 carbine and it is in VG condition. Most of the Model 1922's were well used, because they are handy little rifles, I don't know anyone that has one in Excellent condition. Most of them were converted to sporters because of the small 98 action.