I have a Camp Chef 3 burner stove and a weber 220 grill that I setup on a folding 6' table butted up against the end of the picnic table. We put a 10' popup canopy covering half the picnic table and about half the folding table so if there is rain or high temps, I have a place to stay dry or in the shade. We use the inside only if weather makes it impossible to cook outside like high winds, blowing heavy rain. If we can wait it out and eat a little late, we do that rather than cook inside. I think in 6 years of owning my previous camper, we cooked inside maybe 2 meals. usually it's microwave stuff only and the stove has a cutting board on top of it for use as a prep area.
I really prefer outside cooking. Thats why we go camping is to be outside. Plus it keeps the camper smelling better and cleaner. I'm not sure I would like the stove in an outdoor kitchen built-in to a camper. I prefer a beefier, higher BTU stove so I have plenty of adjustment from 200-500 degrees. As for the storage, I keep my cooking supplies (tongs, spatula's, serving spoons, fork, serving platter) in a tub and other than spices, oil, plates and silverware, I don't need anything from inside other than the food. My wife has a nice little basket that she puts those things in and passes it out and then the food. Once I start, I have everything I need. We wash everything outside and out in a dish drainer on the end of the grill/stove table and take the items in or put them in the tub for the night before we go to bed.
To me, the interior storage or space you give up for the kitchen throws the balance to the I don't need that side of the equation for me. But that's why they make options and different floor plans for everyone's preference. G;lad you found one you love. Enjoy it as often as possible.