Shipping Container Foundation and Solar Engineering

I need a foundation plan for a 20-foot shipping container and engineering for solar panels mounted on the roof. Requirements: - Flat, firm ground placement - Solar roof system to produce about 2.5 kW,... (Budget: $250 - $750 USD, Jobs: AutoCAD, Civil Engineering, Construction Management, Electrical Engineering, Mechanical Engineering, Renewable Energy Design, Solar Panel Installation, Structural Engineering)