001 already has it, and that can probably serve as a model.
catlee, do you have notes on how you installed git? My windows fu is about this big: ><
Heh, my notes just say "install git" :P
And now that I think of it, -001 needs a newer version of msysgit (http://buildbot.net/trac/ticket/990)
There are decent instructions here:
and I'll update them as necessary.
Those instructions seemed sufficient to get this set up, with some modifications. The three slaves are running and building, although there are failing tests - I think that's a buildbot issue though.