Whats my AU1 XR8 worth?????

[shepv8]

Am probably going to sell the car. Its:

11/98 AU1 XR8
78,000 kms
5 sp manual
Silloutte black
Cruise control
17in Tickford rims
Lukey 3 in cat back exhaust
K&N panel filter
Flash tuner with bluepower tune ( price depends on if you want the flasher)
10 months rego
new Kumho Ecsta tyres
Just had gearbox oil done ( transmax ), engine oil, filter etc.
JVC cd stereo, with sony amp and boston acoustic / jbl 7 X 5's speakers.

The car is very immaculate, fairly low kays for its age. Only a few stone chips and the interior is unmarked.
Is $15,000 too much???

What do you guys reckon ,as Ill be putting in the classified section very soon.