Looking for unubtanium part ideas

vames said

Hi Rick. Thanks. Rotors of various makes can be found. But the hubs are weirdly separate from the rotors and they are very hard to find.

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Member @makss machined new hubs from a billet. He posted the mechanical diagram in this post.
Using mustang rotors for 4.5" bc

I spoke with one manufacturing machinist whose price was pretty high. It would go down with confirmed orders, but how realistically how many are out there?