I need an aluminum box with one side open, designed as a structural component. The box must be weather-resistant, specifically for coastal use with high humidity and salt exposure. An engineer-stamped plan with strength measurements is required. Requirements: - Aluminum construction - One side open design - Weather resistance, particularly against humidity and salt - Engineer-stamped plans - Strength measurements Ideal skills and experience: - Mechanical engineering - Experience with aluminum structural components - Knowledge of weather-resistant design principles