Thanks and sorry. Yes. By "old" I more accurately I should have said "used". They are the first gen two-way fit Shamals in titanium grey - about 3 to 4 years old. The brake track of the front rim is worn down far enough to be of concern. For instance:http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=109315
I considered using a new Campag rim, but like the case with many Campag products, while they are rebuildable, its often not worth bothering because spare parts can rarely be found at a discount while the entire components can. (By way of example I recently replaced my entire 2009 SR crank set for about the same as it would have cost me to replace the rings and chain ring bolts alone.)
Anyways, I ended up buying a brand new set of Shamals fairly cheaply. Yes it cost me marginally more than the new rim + build but in the end I get new hubs, bearing, freewheel etc etc. (also now in black which wasn’t available when I bought the originals).
So while this is potentially circular logic, I still have the old wheels in which the hubs are still serviceable. If there is a cheap way to get them running, I’d consider it.