Well, actually, I was thinking you could knock out an 8 port variant based on the Morton and Brett head. Make it 2 piece.
Maybe what you're doing is easier, and I'm certain it will produce decent power. But I know that with the head I'm stuck working with, if I had your chops, I'd be starting with a clean sheet of paper and a billet.
I've no doubt you'll make this work - but there are advantages regarding airflow that can be had by building the head to your own specs, rather than settling for the compromises of a head originally set up for a V-8.
There you go - the project after this one!