I wouldn't sue...lest you want yourself plastered all over Sailing Anarchy as the latest person to get legal. Look at Podmajersky (sic). The guy was clearly in the right, but became a sailing pariah. Got a Rule 69 hearing against him and a 1 year ban for what (I believe) was another dude behaving unethically.
You may say "who cares, i'm going forward legally and will take this guy down"...but think about how many offers to go as crew you'll get if you are known as the guy that sues a boat owner (even if you are in the right). If you love crewing and ocean passages, expect that well to dry up pretty quickly. Just as the net was able to figure out it was Aquarius, they'll be able to figure out the guy that sued.
You survived and have one hell of a story to tell. Chalk it up to life lessons and great stories to tell at the yacht club after the race is over.