To make a self-sufficient factory complex you need a lot of factories, an then you get a spaghetti complex that makes your FPS drop below zero...

Well I have an Idea that could potentially solve the problem, if someone from the modding community is actually interested in making it happen.
Basically my suggestion is making a shell station using new model, or reusing one of the existing ones. That station would essentially be empty, and after you build one, you could put "factory modules" in it (spp module, cristal fab module, med. shield module etc.), and basically build a complex within that station... so you could build a factory complex without hundreds of stations in a spaghetti pattern

Mines would still need to be connected by old method to the new shell station.
Is someone interested in making this happen?