Stripped bolt - how screwed am I?

[bgsterling at earthlink.net (Brad Sterling)]

<snip Toby>
Not sure exactly which bolt you're talking about since I think there are
at least two different versions of the 16v a/c bracket.. but I'm guessing
its the single bolt that runs along the passenger side->driver side axis,
going through the bracket and the block. By that I mean it goes in to the
same side of the block that the timing belt is on. Am I thinking of the
right bolt?
<end snip>

Yup, you've got the right bolt.  However, I misspoke.  It's not a hex head
bolt.  It's a bolt that requires a hex wrench, aka a cap screw.  And to top
it off, the head of the cap screw is recessed in the bracket so the top of
the screw is flush with the bracket.  It's a pretty serious screw as it
spans the width of the bracket (maybe 4" long).  I've considered pounding a
triple square or larger hex into it, but there's no room to swing a hammer.

-Brad
'86 Scirocco 16v