Porsche Repair Questions? Ask a Mechanic for Answers ASAP
They are available here in the U.S. I would get a couple quotes for replacement. You can go with a good used unit also. The cost for the part and the installation are both on the high side.
I am on the east coast, so I cannot recommend anyone in LA. A used one is more likely to have a problem, but when you consider the price difference it might be worth it. There could be someone in the US with a new one in stock, but the price can vary depending on the seller.