Nope your not making that up, same guy. I sold the 80 and the Adventure Trailer's Chaser that I had and upgraded to a 100 and a used Kimberly (I couldn't help it after seeing Spresso's and Mall Crawler's). I did the upgrade for a lot of reasons, which I won't clutter up your thread with.
Let me know if you want this moved to your kitchen thread and I will delete it and move it.
First off, I think your going in the right direction with a modular slide out. A kitchen should be fast and easy. Pull up to camp for the night, slide out a drawer that is equipped with a sink, counter top and maybe even a recess for a stove to sit in and your that much ahead of the game. That's a big order to fill from a relatively small amount of real estate. I linked DieselCruiserheads's build because Andre used his space very well.
If I were having one built for me, I'd ask for the above features. I'd place the stove on the end (I can always extend the slide out further to wash). Either in a simple recessed area, or even on a slide that would allow you a little more flat surface behind the stove while its extended. Next to the stove would be a sink. I'd set the sink inboard to shorten the plumbing accessories.
I'd then take a piece of thin gauge sheet metal, bend some edges/corners on it for rigidity and make it the same width as the drawer slide. I'd hinge it to the top and have it open away from the sink/stove. Add some adjustable braces and viola you have a flat full length counter for meal prep and general counter top duties. Having these features incorporated into the slide saves your family time from setting up to be enjoying the out of doors.
When I had my Chaser, everything was packed away in hard cases, so every time you arrived, out came all the cases, unloaded, set up, use, repack, reload and off again. With the slide it's just more streamlined.
It's pretty much a repeat of what Dan has already said.
We all know you've got the skills, so get to work...
Since my KK is a little older than Dan's it's set up a tad different. Here is the kitchen/stove extended. Both the counter tops hinge out from the work areas. You could easily incorporate the sink/stove in the same slide and only sacrifice the pots/pan storage in the drawer. You can also see the silverware drawer on the drawer side and the cleanser door on top of the slide above the sink. You can also see the top red end of my water pump next to the faucet that pivots down out of the way. Also in view (Barely) is an exterior faucet that's covered in the canvas hood. It's a hand pump, so you can get water without extending the drawer slide.
The p.o. was a jeep guy. These are pics from the sale ad.