Professional Dead Gimbal. Good aluminium

My gimbal got a dip in the ocean. It moves but doesn't send video. I've done a full salt water cleanup but I think the circuit boards have an issue.

The aluminium and cables are all in good shape. I also test another P3P Gimbal and camera and everything works so I've eliminated an issue with the drone and controller themselves.

What is the recommendation? Try to find new circuit boards or sell the good aluminium housing to someone who bent theirs?

Thanks!