WTB: A take-off set of 18" wheels with or without tires.

I have a stock '01 Boxster S that was optioned with 18's but was purchased used with a nice set of 17's. Since the rubber is good on the 17's (Michelin M&S), I'm looking to pick up a set of 18's to use in the summer. I'd prefer them with enough rubber to get me through a season or two.
I live in Upstate NY & can come get them in the north-east/ New England area or would like shipping costs to 13607 if you are farther away.
Thanks!