Give 900Global a call at 1-800 424-Bowl (2695), or (Local) 210-343-3300. Personally, I don't know which online pro-shops, if any, are signed up, etc. Your other option would be to email/pm Eric Thomas.
The balls, to my knowledge, are available -- you could try to have your local shop contact the company, or its primary distributor, to see if you can get one also.
Sorry I couldn't help more. Perhaps Bar has more info on this matter...