They have to have pilots, of course--two pilots. They have to have at least three rescue specialists, as they call them in the private sector. They don't call them SAR techs, but they are the same people, and most of them were trained by the military. They leave the military in due course and go into the private world.
You'd have to have two shifts, and if it's around the clock, you'd have to have at least three shifts. Of course, it does become expensive.