you dont need 60fps, 15fps is more than sufficient for your application.It seems like these are kind of rare, would prefer to stay with a good brand with support.
You should simply use an action camera like go pro.I want to have 60 fps because during fishing tournaments they have rules where if you touch the line or rods or it touches the boat they disqualify you. This is not for the docking or low light footage. I've looked at other security camera footage and I don't believe it's fast enough.