That's also implying that someone wanted to make 15 different stations, which would be a considerable amount of work. That being said, you can take a shortcut and not sub 15 different stations, as each one doesn't need a list of branded component submission(s) from some company to be accepted by the Judges. That shortcut is basically linking the generic space stations from Wookieepedia and giving them a line of flavour text to give them purpose.
Again,
easy peasy.
But, what gets me is that people think that these galactic wonders need to be made in the factory - when the avenue for their creation already exists in the Codex. They're magnificent lore-heavy wonders that should be given the respect they deserve, rather than being some copy-pasted list of fanon branded components, that's no different from their canon counterparts, all made to serve someone's over-inflated ego.
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With that said, if I was owner, I'd kibosh any civilian stations over conventional canon limitations. They're nothing more than a vanity project anyway, so might as well make the best of what you've got.