It's also important that I talk with someone who holds the license to the design. Any takers out there? I don't want to steal your lightning, Dudes. Speak up!

That would be SONICblue, and by next week will be Denon & Marantz. If you want an official license to copy the design then I don't think you're going to get it. That particular IP has changed hands so many times that nobody would have a clue who is responsible for it. I do know that the original tool is rusting somewhere in Sussex and will never be used again.

It seems you don't need the original CAD and I'm not aware you need permission to copy a physical object which is neither patented nor trademarked. Just don't try to pass it off as Rio. Of course i'm not a lawyer, and our lawyers have bigger things on their minds right now.

Rob