I want to repaint my trailer..but i dont have the cash to have it done professionally. So, i am going to do it myself

. I was reading in another post about using sos pads,, would the scotch brite ones work as well? Also someone mentioned navel jelly over the rust,, is that just over the rust spots or over the entire trailer? My trailer has lots of surface rust but nothing that goes all the way through, its got a good floor, frame, new tires, repacked barreins, and the brakes work great. So i would love to hear of some ways i can re-paint my trailer to make it look great again,,,,,,,,,,,,,,,,,,,,,