Did you ask him if he would do something with them? Tell him you could get a set that he could use to build some mounts?
Pretty sure they are very similar to the Viper ones, but the bolt spacing is different, so it would need some work. Pretty sure he is kind of getting out of this stuff, so maybe it isn't something he wants to do anything with anymore.
I know he has mocked up an SRT8 rotor and Viper caliper on his custom hub, though. That would be cool, but you would have to go to an 18" wheel (at least).
You could "roll-yur-own", but it would be some work.