Well, you buy a camaro. LT or SS, it doesn't matter. Get the trim packages you want. Then buy an LS7 motor, take it and the car to a shop and have them install it for you. Or some places like Hennessy Performance or Lingenfelter will do the swap for you.
Bottom line, the LS7 is not a production motor for the Camaro.
2015 1SS RS M6