Great looking boat. My only comment is regarding the ESC cooling fan. It's not going to do much good when you seal the hatch. Even if you had a working snorkle scoop for fresh air intake, your fan is sitting right in front of the battery pack which will create a lot of heat on their own. Water cooling is the only way to go for ESC's. Get (or make) a water cooled heatsink instead. You'll be happier.