How much can I get

I am going away to college at the end of summer, most likely in NYC so I won't be needing my stang anymore and ill probably just drive my grandpas crappy camry when i come home. I have a black 2005 mustang v6 5 speed manual. It has 21000 miles on it. Its mods include magnaflow dual catback exhaust, K&N CAI, and the GT take-off leather seats which have been in my car for around 200 miles. The body is basically flawless, there are no noticable scratches or chips unless you look up close, the car has been maintained very well, I washed it at least once a week during the winter and 2-3 times a week during the summer, I wax it usually once a month. The paint still shines like new, there are absolutly no mechanical problems. I plan on putting on the gt take-off bullitt wheels with pirelli tires soon because I need new tires anyway. How much do you think I could get for the car if I sold it myself? The kelly bluebook private party value is stated at around $15,500-$16,500.