How much is he willing to pay, and will he accept Nazi marks?
I know of a pawnshop in Vincennes IN that used to get them pretty regularly. If they still do this, the last one I looked at went for $800.
I liked the way it felt but didn't buy it for a couple of reasons: First, the price. I was a starving college student. Second, I won't own Nazi stuff.
I may still be able to get you in touch with them should you wish.
There is also a gunshop there and I was friends with the owner. He is an SOF guy, Desert Storm vet, and made all sorts of cool stuff, most of which would be illegal for me to own. However, he had contacts. Lots of them. He could get you danged near anything.
If he's still in business I may be able to get you in touch with him also.
Let me know and I'll see if either place is still around.