I made my Prius into a camper, you can see the YouTube video here. One challenge is when it pours rain, the windows need to be closed, otherwise it comes in. Then you need the fan running to get air.
It looks like you just made this post today, but I felt the strongest sense of déjà vu watching the video. Was there a very similar version you posted some time ago? Were the 'outtakes' newly added? I think the best solution I've heard of for window screens is to get enough screen material to sew into a 'pocket'. Open the door, slide the 'pocket' down over the window frame, close the door, boom, done. -Chap