vanakin
Is your key an older one that is worn?
Maybe a lock pro might help.... I was thinking they have all kinds of little picks and tools. I would suggest doing a phone interview first and see whether they have any experience in doing MBZ locks.
also here is an interesting thread:
locks
... and as far as letting us down, you are trying! That's what counts. What you are trying to do is hard, it doesn't always work.
We can all imagine being in the same spot.
Hey, we're rooting for you! Go vanakin Go!
Haasman