I bought one just like it last year. This gun was 2 years old but never had a scope mounted and had only 2 rounds fired thru it. Basiclly new. I thought that 600.00 was a fair price, however I gave 650.00 just because I wanted it. Depending on the condition of each rifle most (unscoped) go from the 450.00 to 700.00 range. By your description, I would guess in the 600.00-650.00 range. The problem comes in when one pays to much for the gun originally. My 7rum sendero was taken home NIB for 720.00, so 600-650 would seem fair. The ones that got "hosed" and gave 850-950 for theirs don't think much of 600-650 for resale.
Having said all this I'm prepared to to give ya 200.00 for yours and will let you keep the scope. LOL
Really pm me with offer, have a buddy looking for one.
Good luck, DM
ps - also, what other rifles are you considering selling.