Mause that ol gal looks GREAT too me! That's some pretty wood based on those pics. If it were anything but an 06 (I have 2 already) I would probably take it off your hands just for the heck of it. Valuewise I honestly don't deal with enough of them to know fair and reasonable. BUT I know a desirable rifle when I see one and your Mauser looks MUCH better than most "sporterized" ex war sticks floating around. Look on gunbroker.com, auctionarms.com and other places for perhaps some help in getting an idea.
I'll bea real pal and get it out of your sight for $100!

RA