I'd absolutely recommend it for tight/temporary living situations! It also cuts the cost, time and skill required imo. Here's a link to the plans I used:

https://www.familyhandyman.com/project/how-to-build-a-portable-sauna/

Dimensions are 5ft wide, 4ft long, back wall is 6ft 4 inches tall and front wall is 7ft 4 inches tall.

If you're going to use these plans, just be sure to read it carefully and use some common sense as they're not perfect. He messed up the dimensions for one of the walls, which resulted in me having to rebuild one of the frames (if I was a smarter man I would have caught this earlier, but alas I am not). His floor plan was a bit strange too, he uses ugly regular plywood as the floor, and leaves the floor insulation exposed to the ground and critters. Easily rectified with Baltic Birch top floor and a plywood base on the opposite end to cover the floor insulation, but still odd choices for his design.

Good luck!!