I am looking for an educated opinion concerning the value of my 35th Anniversary edition Mustang GT. It is a convertible with a black top and has the 4.6L engine with a 5 speedmanual transmission. It is Performance Red in color. It has all original equipment except for a new fuel pump and dual Magna Flow exhaust tips. It just hit 13K miles and is is super condition. It is my understanding that there were 4000+ 35th Anniversary editions manufactured with 1555 being Performance Red. Of these 1555 only 671 were convertibles and of these 671 convertibles only 283 were 5 speeds. Any help anyone can provide will be greatly appreciated.