All,
I had this EXACT same issue with option CDZ:
http://www.rennteam.com/showflat.php?Cat=0&Number=226077&an=0&page=0#226077I was really lucky because my delership came to the rescue. They agreed to add CDZ (along with a couple others I wished I had ordered originaly: CUJ & DAA) to their next 997 Cocoa order that didn't have a buyer and that they would "swap" the pieces when the car gets delivered and discount the list price of the newly built car accordingly with me writing them a check for the difference plus a small amount for installation.
It took some time (3 months) but it all worked perfectly. The car got delivered. They called me. I brought my car in the for the swap and they sold the new car to a buyer within 48 hours who didn't want or care about those options.
It worked out great and I am definitely going to keep giving the dealership my business although I'm sure the mother ship in Stuttgart wouldn't love this practice (even though they made a customer MORE SATISFIED - kind of warped when you think about it). Also strange that you have to go through this elaborate process to give Porsche MORE MONEY.
Anyway this is another possible way to get an exclusive option after the fact.