I know this is an old thread but I recently saw an original PPK at the Gun Shack in Mt Airy. It was wartime issue and had the Nazi eagle proof mark. A little steep at $700 but a nice piece.
Absolutely a good price if matching and good or better condition.
I've got a bid in on a nice pre-war PP. Low balled it a little ($950) but who knows, I might just get lucky.