Thought this article
would be of interest. One hint... they didn't use rattle can primer. But they did use the same tape to mask things off, and show them pressing the tape down.
For me, painting will be a whole new adventure. Can't say I'm looking forward to it. So this very general article and video was pretty interesting, especially since I have a background in spacecraft engineering (the article isn't technical).
RV-3B, getting there....