http://www.radiocontrolzone.com/showthread.php?t=247495

Good luck, I tried to google for you ,using alot of different search terms and I could not find anything solid.

Only reference I found was that max amps was going to sell hard cases so people could put soft packs into them. ROAR came out and said people would not be allowed to run them. So, I think you may have a hard time finding them.

That link is to a DIY article on making the hard case your self.