You've kinda got the cart before the horse here.whether is it possible to manufacture or not and how difficult it is to manufacture a new compressor.
YOU need to think up a new way to inexpensively compress air to those kind of pressures first.
THEN, based on your idea, you'll have some idea of whether it's possible to build a machine to do that.
But, you're up against quite a challenge, cuz...
Work = Force X Distance, or
Work = (Force/Area) X (Distance X Area), or
Work = Pressure X Volume
You need to figure out a much less expensive way to do the same amount of work as the Bauer Junior II air compressor does.