Been hoping for this for some time now. This could solve the cloak issue so many Feds have. Also for the above poster saying we (Klingons) would never use those ships, I agree....but we would never give Gorn or Orion ships either.
I can't say can see the empire letting other races, conquered or not, use thier ships. though at times in history vassal states have feilded thier own military under the control of another, the only thing that would really need doing to make it appear as though they are not klingon navy ships would be for all of them to have a designation other than 'I.K.S'.
That said, /signed. I want more ships as much as the next person, I'd love to be flying a talon battleship at teir 5, they just look so menacing.