Hi Russell,
I am over in the Easy Bay...I used to get over to the Krause shop and hang out with member Doc Fisher and chat lugers with Mike Krause...but work has keep me away of late.
You might also try to make the Reno gun show this August. Always a bunch of lugers (authentic and many not) but it is a show that one can learn a lot about lugers and several LF members always attend.
Sometimes a dinner event with fellow luger nuts gets organized.
Here is the gun show link :
http://www.bigrenoshow.com/
As far as shooting goes, is the Jackson Arms indoor range off the Hwy. 101 near Grande Ave. in So. SF still in business ? I had shot there 4-5 times and it is a decent indoor range.