Ok an update. I had my dogs previous owner come in and build a small bathroom for me. There is no shower in the RV or kitchen sink so it eliminates the need for a hot water pump. I have a solar shower in case of emergencies and am a competitive bodybuilder so there is a daily gym use that requires a shower afterwards. By removing the oven and the kitchen sink it created a nice space for a counter top that I used gel stain on and am going to use as a small office space. Where the tanks in the bank are, I had them framed off and utility runner over them( using the portion of the old bed frame that still outlined the wall) and now use that as an area to box and bungee cord down breakables when we drive. I took the curtains down over the daybed area as Owen tried to hang from them when drove ( I think he thought they were dangling above for his pleasure like a huge toy) and put them in the cabin area when sleeping. The vanity is still in the bank so it allows for running water. It actually resembles more of a cabin than a motor home and I really like that feeling. I have an over the toilet towel holder that I used in my condo put into the bathroom and screwed to the paneling. I used flash bond type of primer on the inside of the motorhome and then painted it an off white color and used dark gel stain on all the wood. Its very nice. As for a bed I used a contemporary futon, its full size and has a light metal frame with a total weight of 75 pounds and looks great with round pillows around the arms and a couch cover over it ( since I use a zipper plastic cover on all mattresses in the motor home.
To place pictures on the wall... This was a tricky part because I didnt want them to come down and take paint off with it. So, I used screws but then used SMALL dots of a gorilla glue in the center of the picture and behind the screws that are affixed to the wall and a putty type tape substance on the corners and top and bottom but enough flex that it doesnt rip off, you would have to re-paint if you moved the picture.
Shelves- since I stay long term in the rv I use bracket type wire shelves for clothes because they come down and are easily placed on the futon and bungee corded to the futon when in motion and easily erected when stopped. I also dont have to search for clothes very much as they are right there in milk crates on the bed. ;D
I use utility shelves in the corner where the fridge was. I also took that out and am going to opt to use a small water dispenser that has a tiny cooler on the bottom of it. The vast majority of my diet consists of protein powder, canned tuna or chicken or rotisserie chicken and some salad/ canned veggies anyway so there is no real reason for the large fridge and I use that space for utility shelves that can come down or secure to the wall. I also use a portion of the shelf that is too tall as a table to cover the tire hump in the back and it looks completely natural as it sits high enough.
I also have an area on the desk where I can put a televison and also another area in the back for a tv.
I put a twin mattress in the daybed area which will have to be a toddler mattress in the end because the twin sits out too far. Or else I will have to put the box spring in there and create legs for it, which seems silly to spend that time on it. However, having the twin does make a nice space that a smaller mattress doesnt provide
so... I took a gutted motorhome and made a daybed, stained the cabinets, framed and created a bathroom, filled cracks and holes and primed and painted, put in a futon, covered and sealed back tanks and made it as a desk/tie down area, made no need for propane or a water heater, and made it look like a small cabin or 2 bedroom apartment rather than a 23 foot itasca. It has taken some work! The painting was the hard part.