Frame Painting/Coating

[latenite23]

I have an EZ GO txt frame that I am going to use and swap over the engine and parts from my Sport 2+2 that rusted and broke in half(the PO ran in into the gulf of mexico). I leave the cart on an island in south Louisiana. I have a few places that have surface rust on my new frame, and would like to also paint the rest with something that will protect it from the salt water, any recommendations on what to use to coat the frame or should I just leave it with the stock coating.

Also any recommendations on switching over my engine and part to the TXT frame appreciated.

Thanks