A friend of mine here in Reno has a Boxster (I know, but she is a friend) and she went back to the 16's it came with. Her Turbo Twists are up for grabs at 300. They have some rash, but would be solid track wheels, or with a little sanding and touching up they would look good for the street. They are 7x17 and 9x17, all with an offset of 55.
I am happy to drop them off with a shipper if you handle the arrangements and let me know where you want them dropped and the name of the contact person.