Sorry for the delay in answering. We had to make an emergency trip the the Black Hills and just got back. We used Valspar satin finish latex and spray paint from Lowes. The interior of the front cabinet is spray painted in Indigo Streamer (like navy blue). We thought the name Indigo Streamer was very appropriate for Star Stream.
The walls were rolled on.
The window frames containing the screens have been removed so we can clean them and replace the screens. They are also being spray painted the navy color. Our frames were attached with screws so it was easy to remove them. Taking them off the windows before painting the walls meant we could get good paint coverage to the edge of the windows, kind of like removing light switch plates before painting in your house.
The one window where we chose not to remove the interior frame is the picture window next to the entrance door. It is the only window on our trailer that isn't made to open and the interior frame is riveted. It was painted ivory in factory to match the original wallpaper, so we weren't going to kill ourselves trying to remove the paint to make it shiny silver. To spray paint it navy like the screen frames, we cleaned it first, covered the glass with painters tape (took a bit longer than paper, but putting up paper proved to be awkward), and painted it before the colored paint was put on the walls. That way we could paint over the over-spray.
My wife and I had a mis-communication on the colored interior paint. I thought I told her to get enamel, but she wanted the low VOC latex because she has a sensitivity to strong chemical odors. They give her headaches and affect her sinsus. So if you have similar issues, it may affect some of the choices you make.