My advice as to acceptably attractive Luger of WW II vintage that can be shot with some confidence is to look for a VoPo/Russian Capture Luger.
These are Lugers confiscated by the Russians after the war and refurbished by East German armorers. Parts may be 'force matched', the barrels may be replaced (with new), grips may be black bakelite or plastic, and worn or out of spec parts will have been replaced (springs, pins, etc).
Magazines will likely be replacements as well.
The only caveat i can think of is that some were 'dipped' [re-blued] and look quite good; others were 'dunked in roofing tar' and look awful...I have a VoPo/RC P-38 that was 'dipped' and not buffed and looks as good as new (or did when it was re-issued).
You should be able to purchase a VoPo Luger for $800+...And it has the added allure of having been used by the East German VolksPolizei following WW II...