I think base Space Age, and even more so with modded planets, esp. if a large number of them (and even more so K2 Spaced Out), need some kind of alternative, more advanced, next tier transport to orbit solution indeed.
To me it's a big problem of the base game that every planet is like 30% of unique materials and mechanics and recipes, and 70% of repetitive, same or almost the same job of setting up local rocket parts production with the same inputs to the silo every time - rocket fuel, processing units, and low density structure, over and over again.
I don't understand how was it not understood during the base game development that that gets old fast and there needs to be some kind of progression and variety in ways of delivering stuff to orbit - Space Elevator on some planets, some kind of super advanced teleporter on others, some kind of Space Cannon on the next, some sort of high altitude airplane on yet another, and a low gravity cheap launch module on the next, depending on gravity, thickness of the atmosphere, and the local tech and resources available.
It can't be just rockets with the same recipe everywhere all the time.
Hence shout out to this effort, it's great to see it, thanks!