I just stumbled across this page while looking for something completely different... but noticed that they have some d8b parts, like DIO8 cards, and some internal boards that look like they're from the d8b:

http://www.proaudioblowouts.com/go.php/category/43

...or for the DIO8-looking cards, this link:
http://www.proaudioblowouts.com/go.php/product/544

Use at your own risk, though. I haven't purchased from there, am not affiliated, and don't need anything for my d8b right now. Just thought I'd share in case it's useful to someone! Looks like they're in California.

Hopefully I'm not the 50th person sharing this - if so, sorry!