No, that is a indeed a fantasy. A self-sustaining base has to be able to produce food, clean water and energy. It has to be able to make replacement parts, and that means mines, chemical plants, machine shops, factories and chip-fabrication facilities. Oh, and also universities. That is a pure, utter fantasy given our current technology and our capacity for space travel. We can't make a self-sustaing colony on Antarctica or underwater, so why would you think we can do it on another planet?
I think that pagers have been obsolete for more than 10 years now.
No, they aren't. Technology is cyclical.
What good is a ticket to the good life, if you can't find the entrance?