Dang, I was going to suggest the Renaissance link!
From memory David of Scale Race Cars had some very in depth detail shots of a Porsche 911 GT1 in his fotki gallery. Not the '96 Le Mans car but should still be useful. Click the Reference Pictures link on the front page of his site.
http://www.scaleracecars.com/
Hope they're still there, I'm only going from memory, damn work net security...