I've done a few sets - both carrera and 993 brakes. A few of the ebay vendors that make them can resize to fit the carrera flat face. Just make sure you hit them with a clear coat high temp engine enamel (like from advance auto, wherever) - If you don't - you'll have some nice burgandy/brown calipers (Been there done that).
I've DE'd mine - I've abused them - for the record the G2 caliper paint holds up a little better than the durocolor high temp type paints - but the spray on paints are easier to do touch ups. I usually repaint when I rebuild and just let them get trashed from tracking the car. Sebring is tough on brakes...
