Long story short, I clipped something and damaged the left-rear fender of my Caterham. I ordered the parts, and booked the bodyshop, which scheduled my work for 4 weeks out. In the meantime, the shop got my parts, and held them. When the day came to fix my Seven, they closely inspected the fender, and found that it had been damaged in shipment.
Note the pictures below - they circled the small spiderweb cracks on the outside, and you can see the cracks on the underside, in the fibers. Looks to me like something contacted the inside during shipment. To be honest, if the shop had not pointed out the damage to the outside, I'd likely have not noticed.
The fender is the left rear, for a rear-exit exhaust Caterham, and it is pre-preg green. It's a good replacement fender, just not 'perfect'. The part cost me $200, (plus shipping) but I'd like to recoup some of my costs for it, and see it go to a good home. (Extra fender gasket included.) I am in Northern Virginia, so I'd make a good deal for local pickup!
P.S.: BTW, please learn from me: 1.) Do not ship directly from a parts supplier to a body shop - my shop didn't look at the fender for 4 weeks. When damage was detected, they had already thrown away the shipping box. 2.) A friend told me to always ship fragile parts via the method with the least 'handling' - UPS damaged this (but I can't prove it). I used Fedex for the replacement fender.