The Luger is a fairly complicated gun to make, much more so than a 1911. CNC would definitely make it easier, but the accuracy in the CNC process is easily lost when you have to use as many setups as you would need when milling out, for example, a Luger frame. I'm afraid there would be a need for skilled hand fitting even when using modern day technology. I have actually shown the drawings to the owner of a CNC shop, hoping that they could at least make some parts, but it was just not economically possible even at 500 to 1000 units.
I love the idea though, it just needs to be applied to something more obscure and profitable. For example, I'd be more than happy to pay $2k for a Borchardt kit, even if I have to do all the hand fitting and finish work myself. It's no more complicated to make than a Luger, and interchangeability won't be much of an issue as nobody would swap parts between original pistols and replicas. I don't know how big the market would be for kits, but I'd say that a whole lot of collectors would love to buy a finished copy of this "holy grail". You have to cough up at least $30-40k or so for the original, so I'm thinking that a good replica could very well sell for $3k.
Add 9mm and .22 conversion kits, and you'll have one hell of a cool shooter.
