Hi Jorge,
I just got back from the emergency room where they treated me for the massive stroke I had after seeing the bill.
Total: $810
The part had to be ordered from Porsche for $378 (...for a plastic bottle). $47 was for the coolant, and the rest was labor. Apparently it's a major ordeal to get to all the fittings to get this thing out.
At least I discovered the mystery behind the occasional disappearing coolant that I've been experiencing for over a year. The main leak from the tank that stranded me a few days ago was from the middle seam opening up. However, on the bottom of the tank were several hairline cracks that were semi-sealed with stalactites of crusty dried old coolant. These were likely just leaking little by little when the conditions were just right, and the coolant drying out before reaching a place where it could be detected.
At least I had a nice lineup to look at when picking the car up:
