I have to imagine something like a submarine probably requires quite a bit of maintenance to stay reasonably safe anyways, and given their reputation of cost-cutting even to the point of gambling with the life of their own CEO and losing, I somehow don't expect them to be the best at keeping on top of that.
Titan was the only sub they actually designed and built by themselves.
Antipodes was purchased. Cyclops was purchased and refitted - meaning someone else actually designed and built the pressure hull. They did retrofit it so it could be steered with a wireless gaming controller, though!
Just send an intern to buy a VW bus from a junkyard and have them stop at home Depot on the way back for some duct tape, then fire the whistleblowers and have more interns add 3 layers of tape--you know what, to be on the safe side, let's make it 4--and send out another intern to buy some fans for propulsion.
Hook those babies up to the alternator and we'll be ready to--why the FUCK are these windows covered in duct tape!? Clients don't pay a quarter of a million dollars to visit the Titanic but not be able to see any of it! Don't any of you ever use your fucking heads? Glass is bullet proof, I saw a YouTube video about it once, just put tape on the edges to make sure it's sealed and it will be fine.