Those kind of dragons, though they would pilot relatively "normal" ships. Depending on how much free time i get during university i might revisit them (they would be a lot simpler to code than the Crystanite [or the Vass for that matter])
Do you have anything about them that you can show us already? Any sprite or anything.
If you're taking ideas then I'd say their ships could have a scaly theme, kinda like the Kurmajara from Blackrock Driveyards. They could also tend toward High Explosive weapons and very good armor, subpar speed but with a good speed burst ability to let them catch up with their prey quickly.
On an unrelated note, I'm just waiting for this mod here to update to begin another playthrough.