You can order one from Brownells but it says that it requires a gunsmith to install it. Also at this time it is on back order. You can also check out Ebay but you will also need to buy the rivet and have a gunsmith install it for you. If you Google Remington 760 extractor you will get a lot of hit on where you may be able to purchase one and one of the shops may be near you if you check enough of them.
Everyone has different ideas about trophy pictures. Looks around and you will see "long armers," "set behinders," "big cheesers," and "blood covered brutes." I have a few tips to keep your trophy pictures from being laughers or worse yet just plain gross.
#1 Clean it up. Try to avoid bullet holes, gut pile, mass amounts of blood, and the tongue sticking out. You don't want your big buck to look like a angry 1st grader with his tongue out or a MMA fighter during the 3 round.
#2 Long arming...