Luger originality question

[idsa]

Hello, new to your site and glad to have found it.

I have just purchased my first P-08 after of about 30 years of fascination and history behind the piece.

I have a 1938 Mauser S42 w/97% bluing, excellent grips all numbers matching with the exception of the mag and the hold open lever.

Despite the fact that I was told all numbers matched except the mag.

This maybe a sensitive question given the potentially fraudulent practicing that could evolve but for my own pistol to have the hold open lever match the rest of the gun for my own reasons of originality.

Please don't tar and feather me just tell me to let well enough alone and chalk it up to experience in buying over internet.

Thanks