Mopar "Crate Hemi Engine Kit"

Very cool, I'm trying to be smart about my engine options and I've narrowed my list way down and one of the two remaining choices is the 5.7 so I'm trying to understand how many other pieces, beyond the engine itself, are required and what they cost etc. I don't want to spend money on name brands just for the sake of having it but there is definitely an appeal to going with something specifically made for your application.