Another crazy idea from Dingus
I talked to Wade (kb7our) on my way home from picking up the JK Habitat. He shared some experiences he had with the water system. He didn't like the high pressure on the sprayer and a few other things.
I didn't like the idea of the shower/sprayer for everything other than a shower. Trying to wash dirty hands while one of them holds the sprayer, getting 1/2 cup of water for oatmeal etc. So I decided a Faucet would work better and came up with a way to use one.
Having it above the drop down table on the tailgate would be the idea spot. That is the kitchen after all. If the table is up the water falls to the ground. With it down I can set anything to catch the water in. I bought the red tub to catch waste water.
I started by cutting a steel plate to fit in the rear corner passenger side. I used the back bolt that holds the hard top down and added two more 1/4" bolts. I welded one of those long 5/8" coarse thread nuts to the bottom. A short piece of 1/2" steel pipe fits right over the bolt and I used that as the pivot/latch. Near the head of the 5/8 x 4-1/2" bolt I drilled a 1/4" hole and drove in a roll pin. I slotted the piece of pipe two ways so that the roll pin can hold it in the up and down positions. Between the rotating pipe and the nut is a spring to keep it engaged on the roll pin. Then I welded the arm to the pipe.
All I have to do is push the arm back to release the roll pin, rotate it down and let the spring push it back into the roll pin in the horizontal position. Quick and easy. The water lines stay hooked up all the time.

Plate in the corner

Bar rotates down on the bolt.

Then rotate it up to close up the back.
I plan on getting a rubber band or something to prevent the handle of the faucet from being pulled ON. If the pump switch is off nothing should happen. But you know how Murphy is....

Add a tub and the kitchen sink is complete. We strain the water and use it in the cassette toilet.

Had to move the gas lift over by 1-1/4" to make the faucet arm fit tighter into the corner. I just cut the bracket, added a piece and welded it back up.

As the arm comes down it sometimes touches the gas lift if you don't pull it out a bit.
The faucet and arm can be removed completely by taking out the 5/8 bolt and disconnecting the water lines.
Now I have to finish the pump and plumbing.