Custom Options Doors 3'x7' Door $1000 4'x7' Door $1100 Plumbing Bathroom w/Shower Call for Pricing Bathroom w/Tub Call for Pricing Electricity Outlets & Conduit Call For Pricing Windows 3'x3' Window $500 Shelving Outlets & Conduit $40/foot Ventilation Manual $150 Solar-Powered $600 Air Conditioning & Heating Mini Split AC System $2000 Window Unit AC System $1000 Paint 20-Foot Container $1000 40-Foot Container $1400 Spray Foam Insulation 20-Foot Container $1200 40-Foot Container $1700