Hi Pat,
If you indicate what State/city you're from, folks here can probably direct you to worthwhile gun shows or luger dealers in your area that can be trusted...
You also might want to chase down one of the 1970's Mauser built "new" lugers...in 9 mm to keep your ammo costs down. These are fine reliable shooters and even collectible if NIB (new in box).
Here is one on Guns-America :
http://www.gunsamerica.com/guns/976685110.htm