The price for a Luger can be as low as $360, a mixed 1911 went for that on GB on 6 September. And parts can be accumulated for $400-600 or less. You can't beat this with a newly produced gun, unless... You are producing high end Lugers, like carbines or naval/artillery Lugers with a stock. They seem to be VERY expensive and so a copy, as some gunsmiths will convert yours, would sell for a profit. And while 80% lowers sell for AR-14s, because of SOOOO many parts available, the same is not be true for a P-08.
http://www.gunbroker.com/Auction/Vie...Item=504476158