its a shame no ones helped you with this, you need to post a complete list of broken parts with very good pictures here and then e mail B&W
with a link to this page to B&W,
they have a obligation to help you if the dealer is gone and ask them to post their response here.
As well do request some kindness in the transaction as their stuff is a big tad high in expense and this is no time to take advantage of your need, as they are folks who often take themselves way too seriously, and yes some where you can get every part on the box, I am very sorry for your loss,
http://www.bowers-wilkins.com/support