I agree
I looked up my car and it was only 8700

. I say try it for 12,500. Worse thing that could happen is you get talked down to 11k (remember how much you got it for

) If it doesn't get sold after a couple months, lower it. It can't hurt anything. If you set it at 11, people will try to talk ou down to 9/
I just saw an 1993 RX-7 up the street from my house, with an aftermarket wing, in perfect condition for sale. hmmm....
As far as what you put into it, it will be hard to get people to pay for those on top of the price of the car.
Good Luck.