There was a Trade Wars inspired game 25 yrs ago called "Black Nova Traders" that was a whole lot of fun. The original author is embarking on a v2 after a quarter century since the first release. You might find it interesting to see if yours and his vision align and work together[1]. All good if not, I'll keep an eye on your project as I love Trade Wars inspired games.

[1] https://github.com/harwoodr/bnt2