I could do so at ones point. I have an island already, its about 10 or so 64x baseplates wide, with enough room, East side I believe, has a bit of cliffs, but the rest of it slopes down to the water, and its on Slate with waterbricks, confined by baseplate walls. It isn't high enough for a Giant garage, but if you do dig up the middle, you can get a garage. As for all of what your asking, you should eat slice by slice, not the whole pie.