My old Scamp makeover involved a number of requirements. One was a real closet. Not real wide. But deep enough to use adult hangers. My new layout's space budget provided just enough space: 1' wide x 2' deep x 4' high. Plus a little shelf above the hanger bar for hats, gloves, whatever. Location wise, right next to the door's ideal. Not that you can get many steps from the door inside such a tiny camper. Here's the closet framework.
Shell curvature made carpentry challenging. The only flat surface was the floor. To square up the interior my first board in the new build was the closet corner. That vertical reference first enabled cardboard templates for both the front and side faces. The front studs were cobbled piecemeal to arc between the wall and ceiling. At least there's lotsa beef to support the hinge side of the doorway. For the side wall of the closet my process eventually improved by laminating a 2x2 arch. Thin strips of wood were actually scraps from ripping other 2x2's from 2x4's. I just had to make a formed jig to clamp it overnight while the glue dried.
The new fridge compartment's on the latch side of the door. From that point back I kept framing the rear cabinets using 2x2 studs. I considered 1x2 framing but thicker studs prevent buckling. I also considered not wasting any space above the wheel well.
I'd rather be able to open the fridge with the bed extended. That way person #2 can stay in bed while #1 makes breakfast, for example. It's also less bending/stooping to access fridge contents. Besides, the several inches under the fridge won't really be wasted. I hope that drawing fresh air from floor level improves flue draft and cooling capacity. Airstream must do it that way for a reason. We'll see.
Aft of the fridge cabinets extend to and across the back wall. The side cabinet is all frame. The back cabinet gets partly blocked by the couch. Door openings were planned for cabinet access with the bed extended as well.
Fore base cabinets don't exactly mirror the aft end of the couch slash bed. Since I'm doing this project on a budget I reused as much as possible. The Scamp had an old but decent power center that found its place. That upper left corner would've been poor storage so likely dead space anyway.
Cardboard templates were handy. What better repurpose for big box stores' indirect product before getting recycled into other paper goods? It's kinda cool how many reincarnations wood pulp can serve. Sorta makes up for how badly paper mills stink. Sorta. Anywho, once trimmed to fit the templates were first used to fit framework to curved walls. Then fit skins to cover the arguably interesting anatomy. Which is almost a shame to cover up. Almost.
The trick with the closet corner was mitering the edges of both faces. I used lauan plywood, which is only 3/16" thick. To make edge miters I first made a sled for the table saw. The sled was pinned to the back side of the lauan using air brads. That's where alignment marks were penciled using the corner stud for reference.
Then the panel was sledded through the table saw to miter the edge. The technique provided good support and prevented tearout. Plywood otherwise loves to splinter on the exit side of cuts. The sled let me focus on keeping my fingers out of the blade while providing good down pressure and even feed rate for clean, straight cuts and, thus, nice miterd edges.
The cabinets aren't done of course. They still need shelves and tops. The fridge cabinet needs a face and bezel. With base cabinets framed and skinned it's taking shape.