In my experience, it's the other way around. A ton of Terran ships, many Shivan ships, and very few Vasudan ships. Without SA, there wouldn't be any Vasudan science ships or troop transports, for example.
I've managed to find a full, new, Vasudan fleet (StratComm's) - see "Some models that have dissapeared". (if we can contact him and get the files)
No such equivalent exists for the Shivans. In fact, IIRC, all new Shivan capital ships that exist are from INFSCP/INFR1, except for the SSJ Dante and SC Lamia. Well, at least the Shivans have got a few good fighters.