how significant is the rust? I had it bad with mine and just did it myself this summer. POR15 is the only real way to go. if you do it this way you'll never ever have to worry about it again! the spray paint will chip and doesn't really stop the rust like POR15 does. With POR15 there's a three step process. a degreaser that gets all the junk off the metal, a metal ready which neutralizes the rust and creates an etched contact surface for the paint to adhere to and then just paint it. topcoating is optional but suggested since the por isn't UV resistant. plus the stuff adheres best to rust so all you have to do is just wire brush a little and get the flaky stuff away.