Taking a page from Jules Verne’s Twenty Thousand Leagues Under the Sea, the Austrian-based Migaloo Submarines will design, engineer, and build a private submersible yacht for anyone with deep-enough pockets. The yachts take the concept of privacy to a whole other level, as they can remain submerged both at anchor and when cruising between destinations. An offshoot of the design firm Motion Code: Blue (whose 918-foot supertanker luxury yacht concept Im?ra features a four-level ski resort with chair lift and ski…