I might raise a few questions about the water heater?
here is a picture of the 15 gal spray tank that supplies the running water
I paste the clip from a legacy post:
Dear Maggie O....
You're not pestering me.
In one of the above photographs you'll see under the galley a white tall thing. It is an Aquastar 38B LP. It is a demand/tankless water heater. It runs off propane
and does not require power of any sort. It will heat water for as long as water flows through it. The moment water flow stops, the burners shut down. A pilot light stays lit waiting for water to flow again.
The output goes up to my sink faucet. It also has a "Tee" and valve that goes to another hose that I drilled a hole through the fiberglass body for. that hose terminates at the body with a garden hose fitting that from the outside I can connect a short line to a shower head with an inline valve that I can shut off the flow with.
The reason I have a valve under the galley for this shower tap and another valve on the shower itself is that I want to have a shutoff right at the shower, and when the shower is not connected I can positively shut off the water so I don't get any accidental flow to this outside tap. I guess it will keep strangers from coming along and taking a long shower too.
The Aquastar heater is a little taller than the inside of my galley so I had to lower the floor in the galley with a wooden box enclosure. That way it didn't stick up through my wooden galley top. The only shorter demand heater is a Paloma. They are no longer made but are available used. I was going to buy one, but ebay people kept bidding them higher than my new Aquastar. Besides parts are available for the Aquastar unlike the Paloma.
My shower curtain is a conduit loop that I connect to my overhead rack shown in other photos above. You can buy a freestanding shower enclosure instead though. You put it up sorta like a tent. I believe Coleman has them.
Other hot shower options are the Zodi and the new llittle coleman thing. Really don't know how well these work.
Anyway, if you see me camping anywhere, just come ask and I'll let you take a shower since you're not a stranger.