I will admit I probably overpaid for mine, but it was about 450 for a Russian capture with German stamps. Bluing is really good and the bore is in excellent condition, but the numbers don't match. It shoots beautifully (most important aspect to me - I don't buy it if I can't shoot it). Again, probably overpaid, but it was worth it to me.
I too am trying to buy all the service rifles from WW2. I've got my K98 and a Mosin Nagant, and next I'm looking at either an Enfield or a K31. Sorry to possibly hijack this, but is a K31 considered a WW2 rifle since the Swiss were neutral?