My truck's frame is getting a bit rusty from age (99). I was thinking about painting the areas that are visible (transfer case, wheel well areas, ect) with black spray paint. I was just wondering if this was do-able. And if so, how should I go about removing the rust (I dont have a sandblaster), prepping the surface, ect. I understand this wont be a permant solution, but at least last a few years, if that.