More Gen 3 questions

I'll check And make sure the MSD harness works with the 6.1.

RJSJEA - if I buy the engine it's a late 6.1 MP crate hemi but it doesn't come with any controller.

I'd guess I'd be selling the intake, harness and fuel rails/ injectors.

Excuse me if none of this makes sense but I'm three days in to learning about Gen 3s.......