That looks a good one to do! I wait patiently for you to render it.
I can't help but think, though, that if somebody came up with an idea like that class in an AU setting, the rivet-counters here would tear it and the artist to pieces because of "too big a gun on too small a hull", etc, etc, etc.
These little guys sacrificed a lot to get that firepower... speed, protection, uhm... well, yeah, not a whole lot more than that they could sacrifice.
Several ships in real history did sacrifice this, and our AU's over in the N-verse featured several similar ship classes- a few of them hardly as prosaic as this one!
I've wanted to do an AU that has a navy composed of ships like that... a small fleet of one-off gunboats that concentrate on coastal defense.