Leave it alone or ?

[LH]

Hello:

This is my first luger and first post on this forum. I really want to refinish this pistol, add "more correct" parts and make it look nicer. I think this is probably a poor decision because of the cost, but might be a good idea if that's what I want for my pistol.

As it sits, this is mostly a 1939 gun with a "matching" DWM toggle train. Mechanically, it seems sound. I would rate the finish on most of the pistol as poor, with none of the original bluing remaining. The exception is the toggle train, which appears to have a rust blue finish. There are tool marks near the take down lever and on the opposite side as well. The grip is intact on the right side, but the left has large slivers missing. My photos stink, but are the best I have to offer. I'm pretty sure they will suffice for my questions.

The markings are:

Top of the barrel - 1939
Toggle assembly - 16 in two places, and DWM
Left side of barrel/frame - 8916 and 16 in four places
Right side of barrel/frame - 2 eagles with 63 underneath, and a bent wing eagle
Front of frame - 8916
Underside of barrel - 8916, underneath that is 8,82
Mag = mismatch

My questions are: What value would you place on this pistol? What would any changes do to that value? Should I refinish this gun or add parts to it (replace toggle parts with 42 or S/42 marked parts)? If yes, then where to send it to refinish it and where to get parts?

To say the Luger bug has bitten me hard is an understatement. I am very interested in these pistols, so anything you can tell me is very much appreciated. I also am looking to acquire other Lugers. I know to watch the boards, but any suggestions on excellent commercial sellers are appreciated as well. Thank you for your time.