The only viable place anywhere is underground. First place access lift, then place a hangar and small radar. Once done, put a living quarters, stores, hyperwave decoder, in that order. Slowly expand until I have 3 hangars with advanced ships, lots of living space, two high-tech labs, two workshops, multiple stores, an alien containment (yes), 4 fusion defenses and a grav shield. And, oh, a psi lab for learning how to mind control people.
Success is guaranteed. I will need 100 scientists, 50+ engineers and a dozen grunts or so. Who wants to join?