Wanted: 1991 Campag Chorus Cranks (or similar)

I can't stop myself from completing this groupset. Even put a bid down on an extra set of cranks (one for the tourer). Anyway, looking for the rear mech (last thing I need - well, maybe a front hub as well). Anyone have the mech? Should look like this:

I have this exact model, sadly I need it for My 80's Moser.