Built my first major space installation this weekend. It's easy to get nice results if you have a small supply of Epic bitz and some kind of electronic device you can slaughter. I tortured a metal plate into a form similar to a WWII Carrier Ship (one major "landing strip" with a "gun deck" on the side).
With enough left-over weapons batteries and antennas from my own and my Imperial counterpart's game boxes it was easy to assemble the HQ part of the ship. It took me less than a day and I got a pretty impressive result. In fact - it looks so good, even unpainted, that I almost think the point cost is too low for incorporating Space Stations into the game. Almost.
Try it. It'll give your gaming boards an unbeatable SF touch.