Vvt lock or not

Just want to make sure, will the P5160074 fit the 2012 truck engines? I'm new to the Hemi and have a truck with the donor 5.7 and after reading everything it sounds like I need the springs and the 392 cam. It's going into a 71 Demon. I'm starting to collect parts...and they aren't cheap. Also, what is MDS? It sounds like the truck engines with an automatic transmission will have it. Can it be deleted and use a non MDS cam? I'm only using the long block out of the truck. I will be going with a carb style intake and a 4bbl Sniper.