Well the boys on oldgas lean towards hot soapy water followed by a light buff with Mother's Wheel Polish. That rust looks deep. Not a whole lot you can do with painted.
I'd take good pics first. Clean them up in photoshop up and have decals made. T-way may already have what you need. Sand and fill the metal and repaint.
Creighton
Yeah that rust is a little deeper than I thought it was. I did try a little bit of baking soda and that worked out pretty good without damaging the paint so I might end up doing that. Just need to wash the parts first to see how they look without all that dirt on them.