This is my first luger 1912..with questions

[hrbla]

I cleaned, lubed, and took pictures to post it here. My first luger has a serial no. of 7124 with non-matching byf-29 bolt and toggle and a 932 magazine. Before proceeding further on restoration, I would like to how far should I (or could I) go. I have narrowed my thoughts into following questions and am very appreciated for your responses:

(1)Is this a DWM or Erfurt luger? I can not tell from the maker stamp.
(2) Is it realistically possible to can find a bolt and toggle marked "24" and DWM/Erfurt logo to match the pistol?
(3) For a magazine butt to match this pistol, should it be made of wood? or the currnet aluminum one is close enought.
(4) Is the finish on the pistol good to keep? or a re-blue is recommanded?
(5) Even the dealer test fired the pistol (for unknown rounds) and ended up ok, is it safe to fire non-matching luger since the luger was hand-fitted and numbered accordingly.