Being used will deduct a good deal off of it's value. Without the scope I'd say you could get 450 with the scope 550 to 600. It's hard to get much money for a used scope I buy sell and trade all the time and if it has a good scope I'll give 100 to 150 more but when I sell a gun if I gotta 300 dollar scope on it I usually keep it to go on something else. Lots of people think because it has a 300 dollar scope on it they should get 275 dollars for it but chances are they won't. But that sounds like a good setup you got there I love Remington 700's and a 7mm-08 is a great round Ive shot a few and there real shooters.