I had an outdoor kitchen on my last camper. I mostly used the sink and the frig., so when I started missing these things, I decided to add them to my new unit. I bought a 18 gal utility sink that I hook up where the outdoor shower went(faucet has pull-out head, so I didn't lose the use of my shower), and I put a small frig. under the computer desk.
So, if you find a unit you really love without all the stuff you want on it, you can always just Mod the crap out of it. LOL