[nickmcc]

The team at CPSdrone (3D printed submersibles) made a very similar project to hunt for and identify a sunken plane: https://youtu.be/QnBfJzApJMg?si=vFGqMrqZOgFXMAoV

They also used an ArduRover powered catamaran and the same brand Sonar, but made a smaller deployable ROV.