Have you tried calling any local salvage yards?

You may try this:
http://www.trustmymechanic.com/automotive/tusedxbmw/index.html

Never used it, just found it on the net.

That's all I have.

"Dana John Hill" <dana@danajohnhill[RemoveThisPart].com> wrote in message

Your local junkyard should have one.  They were used on a bunch of models,
and they are very well built and hard to damage.  So I would not feel too
bad about getting a junker.

That said... I wonder how his failed, and what he did to make it fail.
What is it doing, and has he done a postmortem yet?

It's actually not hard to repair these things.... it's not that hard just
to pull the case open and do the work yourself.  It's not like a typical
modern automatic that needs to be sent to a specialist for a complete
rebuild.  On the other hand, junkyard replacements are cheap enough that
you might want to save your time.
--scott