That wasn't the only site I found, another site is "owlphone.com" but they haven't responded to any messages which is quite frustrating.

Parts for repair claim to have OEM shells and I'm inclined to believe them, but they don't have matching flaps, they're aftermarket

So if someone has the money to burn, I'd check owlphone, they have the white N9, and have a pretty decent return policy, plus PayPal support.