found this under the vinyl top, all the pics i got atm. i have stuff to do a corvette front brake swap minus one hub
You could take that one hub to a tool and die maker and have the part digitized. Once you have all of the dimensions you can replicate it in a CNC machine.
Think of it as a much more expensive Xerox copy. In the good old days I would measure everything and generate a drawing. From the drawing I could then have the part machined by a machinist operating a lathe and a drill press.