I have that catalogue, too. Much better condition than the one from ebay.
25 Euros plus shipping from Germany (Large envelope, 4,- Euros or 7 Euros, registered letter)
PM me if interested.
No special tool was needed to interchange the cages. Allen wrench for the bolt and screwdriver for the clip. I pressed the pins out with a small allen wrench, they are not sitting completely tight.
I can take a picture from the side, but I will not be there before tomorrow night. The derailleur...
I don't know the exact type but I have this:
The cage looks not so nice, otherwise it's fine.
The cage is interchangeable with all Mavic front derailleur cages, including the 840 series.
25,- EU plus shipping.
Cheers,
Falk
I have one cobalto brake (rear one I guess?) that is missing some parts (brakeshoes and cable adjuster maybe?) but is in perfect condition otherwise. Could take pictures tomorrow. PM me if interested.