You'll have better luck finding an IMS-replaced Boxster on the forums. Check out these links every once in a while.
Automobiles For Sale - 6speedonline.com Forums
Vehicle Marketplace section in
Rennlist Discussion Forums
Boxster & Cayman Forum - Pelican Parts Technical BBS
PedrosBoard :: Cars for Sale
Planet9 Enthusify Marketplace
Welcome to the forum. Where in Texas are you?