Fed ships aren't exactly time consumers. The reason I have so many of the things is because the parts are interchangeable and it doesn't take much to make one. The other races require a bit more time and effort, especially since they aren't as 'kitbashable' as the Fed designs.
I do have plans for more Klinks and Roms, which will probably be based on the SFB designs to an extent. That way, there'll be the KA style fleet, and the TMP/SFB fleet.