I want to build a series of no engine stations that can be tugged into place above colony worlds. Their function is twofold, one is to provide for some orbital weapons fire and PD, but primary is to contain a large active radar to give sufficient warning of an attack to respond. However, such a station necessarily will wind up military, requiring maintenance, shore leave, etc.. Is there anything that can be done to make these stations self-maintaining? Is mission duration relevant if they are parked in orbit above a colony where their crew could rotate through shore leave? Does anyone have any advice as to how these should be built and used?
Note that I would intend to supplement these with at the very least, a flotilla of FACs. Conceivably as well, perhaps I might be better off with the military station being a sensor platform only, so as to keep build times/costs short, and maybe supplement it with a civilian orbital base holding said FAC squadron?