Sorry to hear about that, Mark.
. I too own a 550, with 41,000 miles and no issues so far. I have to assume that since you had a failure your SE has the black interior? I can't imagine one of the Cocoa cars failing.
Seriously, though, it would be a shame to sell it as a roller, as mentioned above, but that is always an option. But with the low mileage of your Boxster it will make a great car once the new motor is in. Of course, my vote (since I'm spending your money) is to put in a fully-updated 3.6 upgrade. Come to think of it, that's my vote even when I'm spending my own money, should this happen to me as well.