Yes, I think that's probably possible. However, I like the idea of a crate or take out motor vs finding all the parts to build a motor and then dealing with a machine shop and their schedules.
An early non VVT block makes more sense and would be easier.

I'll be looking for an early 5.7 and go from there...

Thanks for your thoughts.

Have you thought about the new plug and play 6.4 with the factory unlock PCM?
Don't know how much tuning you can do with that, but the new Hellcats are doing very well.
Matt