So I'm repainting my ATV trailer ... its got some rust but not horrible. I know i need to sand off the rust but do I need to sand the whole thing? And if i do how much sanding needs to be done? Just take off the loose paint that's peeling? Or try to remove all the paint ( I really hope not lol) I'm also replacing all the decking as well. I'm going to be using a paint gun hooked up to my compressor and yes I do have a water filter in my line to prevent water getting in the line. Also any thoughts on paint? I'm going to. Be going with black..