Hello Joe,
I agree with what everyone has said, it is hard to know if you paid to much for it, but hey, the money is gone, but you have a LUGER!
The aluminum magazines are the issued magazine after 1934 for Nazi era guns, and if you like the wood bottom ones, there are guys on the forum that hand make them, they look great. In addition, if you are going to continue to shoot this Luger, then replacing the original firing pin and grips is a good idea, it preserves items that are possible to break and you can put on some nice new ones.
Welcome to the forum Joe,
Ed
(retired US Army MP and still FOP)