I think it is a very cool idea that could be explored. Remember one thing - if you do your roleplay on a high quality level and really engage with players in-game, you could achieve the goal.
Just as an example - in 2007-2008, I witnessed the first beginnings of the Hellfire Legion faction, flying under the Lane Hacker ID, based at Mactan (Magellan System). At that time, they didn't impress me with anything - they even lost most of the fights right outside of their base. And now, 10 years later, they have a full line of custom ships, a huge amount of lore behind them and govern a couple of systems independently.
It all comes down to your ability to roleplay your organisation well. I like the graphics you have put into it. You will also need to remain motivated in the face of many who will just dismiss your idea and tell you all about how "impossible" it is.
As for the dev side of things, a system that resembles something like Sol (or even two systems, one being the Kuiper Belt), can be done and it is not that hard. Learning to make systems is easy and the software is quite easy to use - that is up to you to learn and master. Do it well and it might be included into the game.
Good luck!
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