Frigate sized pets are usually limited to BIG ships though, just heavy 2-hangar carriers and the Scimitar.
Maybe instead a Raptor carrier, using knowledge gleaned from assisting the Republic in the development of the Ar'kif (and trading material support to learn about Romulan shipbuilding)?
Same boff layout as the MVAE (finally giving the KDF a sci-heavy Raptor)
2/3/4 Consoles (+1 sci for fleet version)
31,500 hull, 0.9 shields
Console that enhances the cloak somehow (learned from the Romulans) but specifically isn't Battle Cloak
You know what? Make that layout have a uni lt cmdr and it'd patch various holes in the KDF ship line-up in one go. I'd buy it regardless, though.