Don't see too many complete looking BA123 boxes show up on eBay and this one seems relatively cheap if you happen to be able to pick it up locally in Richboro, Pennsylvania. Plus a few boxes of VMS documentation too.
http://www.ebay.com/itm/232013130536 (No personal connection to, or information about, this seller) I would grab this one myself if it was within easy driving distance. Someone should grab it.
