Here in Ohio that rig would probably bring $450 to $500 for the rifle and around $300 for the Scope. You might get more out of the scope if you sell them separately. Just as a reference, I purchased a Remington BDL, 30-06, left handed that still had the original box and in like new condition a few months ago. It was 16 years old at the time and I paid $500 for it.
Values will vary depending on where you are located.
Jim