Hi Sean,
You are using 2 sets of criteria that are mutually exclusive of each other.
A 98% all matching (except mag) that you only want to shoot 20-30 rounds a year is still a collector-grade pistol by the fact of its original finish being so strong and having matching serials. Such a pistol has price premiums.
A shooter is either an original finish gun down in the 50-70% finish range with or without all matching serials.
If you are looking for a luger under $ 700 or so, that would most likely be a shooter as I have described above.
Doug Smith and Ken Clark of FGS in Portsmouth, OH have a couple of nice offerings in the $ 950-975 asking price range; that are somewhere in the middle of the 2 sets of criteria I have described. You might want to look at their web site; these guns are towards the bottom of this page.
FGS also has a very solid reputation with collectors as far as a retail dealer goes. I have had several very pleasant transactions with them.
Ken Clark will also usually send more photos if you call or email him and he knows you have serious interest.
Make sure your 1st. shooter is a 9 mm as 7,65 luger ammo is a bit pricey to shoot alot. But shooting 7,65 is more enjoyable (my opinion, only) than 9 mm.
http://www.fgsinc.8m.com/photo.html
p.s.
Check-Point Charlies has a couple of $ 725-975 offerings as well that seem to be WWI honest pieces with history, mostly or all matching, with some wear and non-matching mag's.
http://www.checkpointcharlies.com/sh...4&categoryid=9