what is value of 1967 Mustang coupe, 289, air scoop ,really good condition red with white racing stripes, killer chrome hubcaps, black interior, no radio, runs great, paid 5-6K in 2002-2003

Gets lots of attention anywhere I go. Problem is you park it someplace and worry about it getting
keyed or trashed, so only drive in summer and when stay close to car like rallies etc...no rust at all,
bought it fron a dude that works on cars for a living so he did a beautiful job. Seems keeping it will
bring up value but I could really use a nice, heavy duty truck for about $10K.
I can replace radio pretty easy. Old owner says with my improvements, I should ask $12K but if I can only get $8-9K I will keep it.