I found some rust. Around the bolt holes under the wing one is growing out and about half an inch around the hole. not rusted through yet though. What should I do? Sand off all of the rust and than coat with primer + touch up paint? or a rust preventative? I don't have the money for a carbonfiber hatch yet

 

Why not have a body shop do sand it, primer it, and paint the small portion? Unless it would be a pia with colormatching fading paint the cost would't be outrageous.