First off beautiful description.
I'm thinking bigger for range and aiming for speed over firepower or even manoeuvrability. Something to the equivalent of a tea clipper of the skies. Graceful and elegant. Speed to out run things she can't fight and range so she has greater freedom of range and can stay out hunting longer. An airship is like a shark, when it stops moving it gets into trouble, so range matters.
I would like a good engineer in the crew for sure. A fence I'd see as a side role for another member rather than a role in itself, but I'm dreaming at the moment. Don't mind me.