I want to build my own submarine any idea how?

[em2nought]

I don't think those NARCO subs are truly submarines, instead I think they're designed to travel just below the surface with a tiny cockpit sticking out of the water. A much easier craft to construct I'd say than a true submarine.

Can narco subs go underwater?
Image result for narco subs not true submarines
Virtually all narco submarines interdicted at sea have been more correctly termed low-profile vessels (LPVs). Also known as semi-submersibles, these are craft designed to run exceptionally low in the water to avoid detection. But they cannot fully submerge.Nov 16, 2020

I wonder if George Soros has a mega yacht? hmmm