Guest Suite (instead of kitchenette, use that space for a desk and/or reading nook - arm chair, table, lamp)
Here's the floor plan. It's just right for one person, at least if that person is me. It's a modified shotgun layout, which again is something not unheard-of where I grew up. As built, I would change room depths to: front porch 8', living room 14', kitchen 9', bunk room 11', bath 5', bedroom 13'. I would also add a 9' back porch.
Floor Plan Design 027H-0154 480 sq. ft. 24 ft. 0 in. Depth 20 ft. 0 in. Approx. Height 13 ft. 9 in. Ceiling Heights First Floor 8 ft. 0 in.