Luxury zombie apocalypse shelter for five people in 3D

I designed an underground shelter to be built in my backyard for my family in case of zombie (or other) apocalypse. As I don't have enough money to build it, I made a 3D preview at least. The shelter should provide enough supplies for 5 people to survive for 1 year without having to leave. There would be several independent sources of energy, such as solar panel, water turbines or excercise bikes. Drinkable water source would also be available. The air from outside would be filtered and there would be a periscope to inspect the ground, but the shelter would be hidden as well as possible. The computers would provide the option to browse a backed-up subset of the Internet in order for the people not to go insane. I used Blender and rendering took two days on my laptop.