Sounds doable if you keep it simple. Use a frame of treated timber or metal angles, panels of plywood or insulated OSB, and a single-slope roof. Seal everything with good tape or epoxy, make a rain‑runoff channel that feeds into a rain barrel. For heat, a small wood stove with a proper chimney works best, or a solar panel if you’ve got the setup. Grow herbs in raised beds inside, use a ventilation hole and a thermal mass to moderate temperature. The key is modular pieces that lock together without screws, so you can throw them up, bolt them down, and be done. Just make sure you have a plan for wind and snow loads, and you’ll be fine.

Pulling the roof up to let in light? I’ll design a single‑track winch with a lock that stays in place when the roof’s at angle. The solar panel on the slope can feed a small battery that powers a heater or a light, but keep it low‑power so the whole kit stays light. Pre‑cut wood and snap panels are fine; just make sure the locking pins are strong enough to hold the roof under wind. Get the pieces cut and you’ll have a quick build. No fuss, just do it.