You guys keep forgetting that he's dealing with Hammer Finish paint. All those ideas are good if you're fixing "normal" paint runs but Hammer Finish paint is not only textured but it comes out speckled in different colors, and you have to spray it on thick to get it to look right.
Unless you spray the entire object the edges of any repair to hammer finish is going to stand out.
Trust me on this one... strip it or sand it down and start over.
