Those high end wheel manufacturers really do not make anything in our bolt patterns (of course, unless you convert to that 4x100 PCD).
But, some of them, and supposedly Enkei, do have custom drilling, and milling for ET/backspacing programs on
some of their models.
Obviously, this adds another ridiculous expense to already exorbitantly BIG BUCK wheels, and also obviously, a pathetic wait/lead time for delivery on top of already insane 'supply chain' delays.