1. I am still looking for the answer there. EDIT: I don't see that any pricing information has been released yet. You can read up some on it here ->
http://www.camaro5.com/forums/showthread.php?t=14915
2. Yes and yes.
3. Yes and yes.
Anything that is a dealer installed option you can get after you get your car or you can have your dealer order them as soon as they are available. No need to change your order to put those two items on.