Another resource I've investigated that seems very compatible with what has been developed for TFT is a game called Sea Law. I'll include the link to it @ DrivethruRPG. It follows the same concepts as TFT and many components could be portable over to TFT like weather, ship schematics, creatures, combat sequence, etc. I'm not ready to incorporate it just yet but we are very close as our campaign is looking for a map in an ancient undead forest that leads to a King Kong "Skull Island" island guarded by kraken, giant whirlpools, ghost ships, etc. So we'll be setting sail later this year and we'll use the TFT along with Sea Law elements.
https://www.drivethrurpg.com/product/96430/Sea-Law