I hate to break it to you, but it will be a cold day in hell before the "hot cam" is factory installed in a Camaro because it wouldn't pass emissions. you may as well say you want to order your camaro with a 572 crate motor installed.
Also, you don't always have to pull the motor to install a cam. on a 4th gen, you just need to move/pull the radiator to get the cam in. of course that may be different on the 5th gen, but who knows....
this should give you a good idea of what is involved with a cam swap....
http://www.ls1howto.com/index.php?article=23