??? Aren't the recall wheels already being reproduced? Seems to me you'd be reinventing the wheel - no pun intended!

Since you're dealing with aluminum you can't just make a mold from the original as you have to account for the shrinkage of aluminum - which is significant.

The ideal way in this day and age of modern technology would be to determine the shrink factor and have someone do a cad program of the desired item taking that shrink factor into account. Then have the item made on a 3D printer and then use that to make the mold.

See shrink factors here:

http://www.shelmetcastings.com/shrinkage-allowance-for-metal-casting.html

Since these guys also claim to be "short run experts" they me be who you want to talk to. I have no idea - I just googled "shrink factor" and they popped up!