The market is still very strong on Remington 7600’s, especially factory carbines. Thank Hal Blood and the Big Woods Bucks crew! I would not hesitate to do a penny start auction on Gunbroker and see where it ends. Lots of good pictures, have the auction end on a Sunday evening, and spring for the extra exposure options on your listing. You’ll almost definitely get north of $1000, maybe MUCH higher.
Hal Blood has definitely influenced some of it he got one of mine a while back. The issue with Gunbroker unless you sell quite a bit and take credit cards the auctions sometimes don't do as well. I've watched numerous auctions for identical guns. One is from a seller who takes credit cards and has plenty of positive feedback. The other from someone who only accepts money order/ checks and say maybe a few positive feedback. The known sellers gun will always do way better.