I have done a lot of experimenting with base layout now. So without roof on, upper solar and wind power. and lowered vehical bay, that leads to a node and cave entrance.
With roof on, a hole for the trade shuttle to go through lol.
I am half tempted to do a video tour of my base. I try to be creative with them, and try lowering / raising platforms. On a previous save, I linked two different habitats(save pods-will have to see if I have that save :o get screenies)