Thank you. It's been a multi-year project. My wife and I pick something to improve each year. She has the ideas and I provide the labour.
The bathroom door was first designed by another Oxygen owner and forum member (Rod). I saw Rod's pictures, liked what I saw, and took a picture to a friend of mine who builds stringed instruments. The door is way beyond my ability to construct and I'm glad I had a friend with the skills. Rod's door design looks like what the trailer should have come with to start. Feel free to find someone skilled with wood-working and copy the design. The wood is marine-grade plywood and mahogany. I chose this wood to minimize the chance of warping due to temperature and humidity changes.
The counter-top is 1" butcher block. I used the existing counter-top as a template and made the left side overhang wider so there's an area to place dishes next to the sink. The fridge
can stay where it is to remove the counter-top, but you have to detach the stove propane
supply and the water supply lines and the drain to remove the stove and sink. Then there are 8 screws holding the counter-top down to the fibreglass cabinet.
The original owner's manual warns that the Oxygen was not designed to accommodate an air conditioner. We have chosen to install a Maxxair fan only. I am not suggesting that you install an air conditioner, however I've noted that other Oxygen owners have. I also know from experience that the roof is strong enough to hold my weight
for many hours. I was on top of the trailer sanding for many hours before we had it repainted. The problems with adding an air conditioner are:
1) Feeding enough power up to the air conditioning
unit. The existing 12 gauge wire is not sufficient to carry the current required to operate an air conditioner.
2) You change the center of gravity for the trailer by adding significant weight
up high. I don't know what impact this has on towing (if any.)
Again, according to the owner's manual I have, Bonaire did not design the Oxygen for an air conditioner. There are Oxygen owners who have added an air conditioner and their advice may be more valuable to you than mine.
Good luck with your renovations. If you have questions, I'm happy to answer.