Any of those engines are going to be a direct swap, and very hard to decide on!
They are all great.

If you're planning on going with a turbo, get the pistons upgraded, JE, Diamond etc, will be just fine. They can take a lot more abuse than the stockers.

Let me know if you're intersted, I can get you a great deal on a crate 6.0L, complete from harness to oil pan.

good luck,

allen