What if the story and the set up of your faction doesn't allow for such things simply because it doesn't make sense? The vdtf is a faction of 100,000 Vekimen and 200,000 thousand iee I think. They are a military government, and every citizen is a member of said military. I think the only vehicle they have that isn't armed to the teeth for combat I the shuttle train that goes from the hangar to Komodo city and the Komodo headquarters. This is because they just aren't big enough to worry about a civilian sector. Galaxy is big, people are out there and even with the union, khelena can't just take the population and suddenly tell them military is optional. It would cause a massive issue in how the society is balanced. I focus on military simply because until I'm able to solve the population problem, I can't write then it off being a military faction with using a crowbar and botching the species. Isn't there an alternative where you can make vehicles for enemy factions to supplement the civilian ships?