I found a cool thing on Thingiverse. It's a forward command post of sorts. I think it'll work really well for an outdoorsy Star Wars piece of terrain. I have the command console bit printing right now so that I can decide whether or not I need to scale the whole thing up a bit. One thing I'm encountering is that most terrain is designed for a 28mm scale. Star Wars Legion seems like it's closer to a 32-36mm scale. The dude are generally taller than a generic Space Marine, but shorter than a Primaris Marine.
It's available here.
As I said, I'm printing the one piece first to make sure I have the scale right. Then I'll print the whole thing, which conveniently comes in a single file.