Darin -
You didn't put your location in your profile. Geography plays an important part in valuation, although members who live in areas where Lugers are prevalent often forget that. In Western New York, for instance, a mismatched ["shooter"] Luger in good mechanical shape and no rust or pitting [patina acceptable] would go for $850 -$900 easily, probably a hundred or two more at a show. Grips, IMO, don't really figure into the selling price of a 'shooter'. They'd have to be really worn out to be a factor. Holsters, extra magazines, cleaning rods, loading tools are really only of interest to a collector. The casual gun show buyer is only interested in the gun. In your case, with a mismatch/shooter, the complete 'rig' would interest a beginning collector as a 'placeholder' until he could get something better. You could probably part out the individual items and get more value collectively.
OTOH, if you're looking for an insurance value, I'd say $1500 - $1700 for the 'rig'.
Only my opinion, of course.
