I have a poorly-repainted 517 caboose that I want to repaint into a fantasy scheme. The existing paint job, while ugly, is fairly solid - no runs, flaking, pitting, or crackling, and there are only a couple of very small bits of surface rust - see attached picture.
I'm not an experienced tinplate painter, so this is somewhat of a practice project / learning experience.
I've reviewed multiple threads regarding repainting, and would like your thoughts regarding the best way to proceed. Should I strip to bare metal; if so, what method (sandblasting, vinegar, something else)? Or should I just prime over the existing paint; if so, what kind of prep?
Thanks for your help.