The Crower scoop has no butterflies in it, from what I've learned, unless there were aftermarket scoops for them.
Looks a lot like a Hilborn, but yeah, are magnesium. (We might need Josh at JBP to fire up his machining and fabbing skillz here).
Thanks on the Zoomies! Still looking, they'll turn up. Also can't be that hard to make if we have header plates.
Ray