Originally Posted by thenomad

As long as bare steel isn't showing I don't see the issue. Even if it is, all you'd have is a few areas with surface rust dust. If you're really planning on a paint job then you'll be stripping it all down and going through a several week process of prep, paint and build. Go on your trip and do the paint the right way later.
If you're really worried then hit any bare spots with nail polish.