Ok I know this is a bit late. We were hashing out ways to make a model this size in the RPG forum. Obviously 1/285th. Now wile it would work much better for the Zentradi, one of those inflatable Balloon displays. there are company's that do customs. A Zentradi Carrier would run around 3 grand. We were thinking in teams of inflating them for some huge games.
Disclaimer
This Idea originated with someone who probably had the munchies soon after. But who knows.