I think that it is unlikely that Campag did any reworking of the insides beyond the different (Shimano) cable pull.
Pointy top ergos are rebuildable to 9s. I have a set of 96 Records which are exactly that.
The best people to talk to are Mercian Cycles, who hold lots of Campag spares and offer a rebuild service.
Check if you can get them done to the post '01 cable pull per click as the earlier mechs are getting thin on the ground these days and tend to command highish prices.
Ride it or milk it!