996 GT3 Need some help

[Geesus]

Hi guys,

I've stumbled across this car through a friend of mine.
I wonder if you lot can shine some light on what it might be worth in the current climate, in terms of me making an offer on it.
It's a 2005 996 GT3 with 28,000 miles on the clock. Obviously has done some track/competition work, also has some upgrades (not sure what yet).

I'm guessing the 'tow' eyes in the front and rear bumpers are a bit of a detractor, as will be the bonnet in black? and the fact it's seen some competition use?

Thoughts...

Thanks in advance.