Iain McGhee
Mongoose
There's also the Trafalgar and Alamo, both from the Griffon Games decal sheet which has the names and numbers of all the canon Hyperions and Omegas from B5 (but misses some from the films and Crusade). I'd be guessing about the numbers other than for the Lexington and Hyperion (both 21).
As for the EAS Excalibur, there's also the Omega class destroyers Delphi and Nemesis which are, of course, also other ship classes (and presumably names of the first of those launched).
As for the EAS Excalibur, there's also the Omega class destroyers Delphi and Nemesis which are, of course, also other ship classes (and presumably names of the first of those launched).