I have not swapped hub carriers, but I was under the car the other day and took a picture of the passenger side carrier. The stamped part number matched the original carrier number (ie 31212284002). It certainly doesn't seem my car was delivered with the hub carriers with the extra camber.
https://drive.google.com/file/d/0B8s...ew?usp=sharing
$1000 for half a degree of camber seems crazy, but might be worth it to remain in street class autocross.