There is actually a site for the stainless with the grip safety.
http://www.billpalmer.com/Amereagle.htm
This guy must be making them from AIMCO/ORIMAR guns. Notice he is limiting them to just 350 units. Makes for a nice custum gun. That site has been there a long time...
Why would Post-WWII Lugers not be the place to discuss AIMCO Lugers???