I think you are being over ambitious. Think how many manhours goes into successful quality simulation games like DCS, or even mods to existing games like those you see here.
I recommend you go take a look at the "crush depth" game. It looks beautiful, but after much expenditure of time and money seems to me to have stalled at the tech demo stage. I'd be interested in the opinions of others as to where that project is going.
Have you considered talking to the developers of the Wolfpack game and posting on the forum ?
https://www.subsim.com/radioroom/forumdisplay.php?f=277