It's a Ranger...Any Ranger that is newer than 1980, is just another wanna be truck that can't tow any real weight, on a consistent basis, and is basically useless. I would never pay anything over about $1000 for any decent looking Ranger WITH working A/C. Why? Because I don't care HOW old the previous owner was. OR how "responsible" he was with it. It's still a USED VEHICLE with over 100K on it. But that's just me. When I purchase a truck...I want it to be able to tow some decent weight...like a vehicle. If it can't do that, I don't want it and it isn't a "real" truck.
When I worked selling vehicles, though, we used to say "There's an ass for every seat". So it will sell....you will just have to be patient.