Gen 3 Hemi Swap time!!!

So I need some help from the guys who have done this. I know that things are very different from when the Gen 3 was first introduced. I have people telling that they are using Car and Truck engines. I want to know what experience you guys have. Im looking at a 09 and up 5.7. I see no point in getting any bigger engine with my purpose of going twin turbo or Procharger.

I will also need info from those that have used the new Hemi MegaSquirt plug and play box please!

Also any other little facts help, I am using a aftermarket K frame too and staying with my 904