New renders showing a couple of details I've rethought since last week:
Here I've added the A/C unit on the wall next to the restroom. I'm planning to build a box around the external parts of the A/C with an opening in the roof to evacuate the heated air coming off the cooling fins. This should be a very efficient means of getting rid of the hot air as well as making it very difficult for anyone to steal the A/C or get access to the inside of the bus by removing the A/C. Over the roof hole, I'll build a raised cover with side screens that prevents inundation with rain as well as a buildup of leaves and wasps. You can also see where I've cut out the wall for my existing 48" x 24" RV window with emergency escape panel.
This is a detail of the new bed placement, a little further aft from the previous renders. I also added storage space in front of the bunks with cubby holes over each bed. Each one will get an electrical outlet for charging phones and for reading lights, etc.
From this angle and with all the parts unhidden, there is a manageable space between the corners of the beds and the opposite wall between the office and bedroom. Based on these virtual builds, I'm pretty sure I can get away with not having the beds hinged at the wall for space savings when not in use. I'll just pad the corners of the beds if bodily injury becomes an issue.