Hi, having some access to the kitchen from the inside is not hard to design, other teardrops have them. There is no difference structurally which way the kitchen faces, its accomplished with framing .The back wall inside can simply have doors allowing a reach-in to food storage and water, a fold down door forming a shelf can give access to the stove. Nothing more than a pass throughs.
The use of tambor roll up doors would be nice. These doors are found at box stores. They are used on corner cabinets, the bread box area. The can be made, simply gluing half dowels or strips to canvas and router out a track in the door frame.
A sliding fridge can slide both to the front and to the inside, so can a stove and sink. You can roll them inside as needed. The fridge (or ice chest) is usually near the floor, above that you can build in a sliding cutting board to add shelf and work space. A utilitity drawer can slide both ways as well, just have locks on them as used in yachts or RVs.
You'll need a matress that you can fold out of the way. A small interior table can fold down from the wall. If you're like me and don't want to sit indian style all the time and you have enough head room, a seat can fold down from the opposite wall, just a few inches off the floor will help the back.
Along the bottom plate I plan on using a section of a 2X10 or 12 length ways to mount hinges for any fold down seat and have the ends framed in to the wall framing so that my 200+ rear end is not hanging on plywood or 2x2 frames. Walls will be 2 inches, plus a little depending on exterior cover with blue board foam insulation.
Overhead consoles can add storage as you have pictured, I have seen microwaves and TVs built in. I will have my HAM rig built in to pass the time inside with a fold down boom on the upper drivers side.
If you incorporate these pass throughs, the outside door needs to have a good seal to retain heat and air if you have it. You should be able to get good door seals at an automotive trim shop cheaper than an RV store and it's sold by the foot here.
I'm in the process of drawing mine up for my fall project. I'm hoping that I can keep the weight down, that is my problem, so may not be able to use many of the little things. 2x2s and foam with 3/8 and 1/4 ply is a common build instead of 1/2 and 3/4 ply and can be just as strong or stronger depending on your framing skills.
I'm old school which means my stuff is not CAD or on the computer and I have no way to post such things, sorry.
While that fuel niche looks cool, it takes away from what could be interior space and you're right, it adds to the difficulty of the build.
I'm thinking of having a battery box on the front, centered, fuel on the passenger side and water on the other side. Propane on the rear or up top on the rack, don't forget a rack. My portable gray/black water tank will mount on the rear and come off at the site. I'd also like a small solar panel to help charge the house battery, I don't think running solar to run the camp is practicle or efficiently economical at this time. The spare tire goes up top toward the front. A roof vent behind the spare tire, then a small rack toward the back. With that set up, I will need some weight in the kitchen area to off set the tounge weight, food and maybe a gen set on the back should do it.
I'm also thinking of running wiring through small PVC pipe to keep it neat and from being snagged. Two small spot lights front and rear on the top will help when getting to any site late at night.
Those are the main ideas I have for you to consider. I'd suggest you goggle "Teradrops & Tiny Trailers Forums", that seems to be "the" site for these builds with lots of ideas and some very cool trailers. There is an off road section as well!!!
Also, for framing techinques check out "Microcruising The Bahamas" there you should find some small boats that have sailed around the Horn. IMO, much tougher and stronger building techniques than any sheet plywood teardrop build. These boats have forces applied to them from all directions, unlike the limited forces of a trailer. Such framing will take longer, but you'll have a trailer for the rest of your life, something you kids can enjoy when you're gone!
Good luck to ya on your build!
