If you're going to run in salt, I'd consider using a chemical conversion coating(we call it Alodine in the aviation world). You can get Alodine from Aircraft Spruce or Amazon. I would talk to Aircraft Spruce as they would be more likely to know which type to use in this application since they deal in aviation and aviation supplies They can be reached at
Pilot Supplies and Aircraft Parts | Aircraft Spruce
BTW, Welcome to the hobby and the addiction, I'm sure you will understand the "addiction" part as time goes on
