I ran your vehicle through Kelley Blue Book (included the options you mentioned) and it looks like your price is probably ballpark. The only variable is the CF pieces, some people like bone-stock, others don't. I fall into the latter category. You said the wheels are new? Or just the tires? Certified Pre-Owned is not the condition the vehicle is in currently, although it may have been when you bought it used. I don't think shabarivas was being out of line with his post, btw. Chill and GL with your attempt to get a Z, I don't blame you for wanting one.
Condition
Value
Excellent
$27,335
Good
$25,835
Fair
$23,835