The problem with question such as this is simply that "Your mileage may vary". This means, each area has a slightly different pressure point on pricing used equipment. Thus, the answers given here are only so helpful.
Secondly, the ballpark price of used equipment is easily established online. Go to TractorHouse dot com and shop identical or similar equipment. Typically, you'll find dozens of comparable units. Some may the deck, but no FEL while others the FEL but no deck, etc and simple extrapolation gets you in the ballpark.
I can tell you I bought a similar unit last winter for around $11,000. I have no idea what "year" my tractor is as that is largely irrelevant within a particular model run. Mine had 24 hrs on the meter and was spotless. Hope that helps.