First off: I love the idea for the mod. Living in space and building a huge platform/factory there? Nice!
However, the whole thing feels VERY grindy. I've found myself speeding up time via editor extensions several times just because there was nothing to do but wait for asteroids to come in so I get another few hundred iron plates for space science. I've played until I had green science fully automated (and a quite large platform with long "arms" to catch as many asteroid chunks as possible) and found myself waiting ages for the resources to roll in.
Needless to say, such a behemoth is NOT suited for space travel so I didn't bother further expanding it and called it a day.
Also, I want to be able to land on planets. Either by myself or at least be able to send something like a "planetary rover" down there to build for me or something. This might also help with resource starvation and add another level of play between getting your initial platform running and visiting another planet.
Also, being restricted to a single platform/vessel is tough as well.