I've been designing, but will never build, the perfect SCA camping trailer. Designing for about 2 years.

Two story tudor structure, collapsible for trailering, has everything for all-weather camping mundane or SCA, except a good bathroom. For that it's still portalet... Much of the furniture is collapsible for the second floor.

Wired for power (12/120), concealed interior and exterior lights, fire safe, small kitchen, etcetera.