yeah but i meant to implement the construction of artificial planet as dyson sphere and ringworld around the stars... if it's possible of course
I don't think that's possible.
I made a Sins of a Solar Empire Mod along time ago just never wanted to release it to the public may show screen shots of it some day.
And the only thing that you can take from Sins of a Solar Empire is the 3 factions, which you don't even know their type of government, name and logo, and their techs. Even planet names, star systems and improvements would be a problem, you'll have to make it all up. Which looses the main idea of having a Sins mod.