Do you really wanna spend over bluebook for a customized car. When people customize the powertrain, they want to do it to drive it hard. I'd find a stock one and customize it yourself personally.
http://www.kbb.com/KBB/UsedCars/Pric...uizConditions=
Dunno if the link will work but the main thing is...
Condition
Excellent
$8,875
Good
$8,295
Fair
$7,285