Or just take one M4 some ammo and one highly trained fearless paratrooper and just take everything you need when the time comes LMAO I personally would never do such a thing. the water stocking is ok but a water filter hand pump would be better to have. We've actually dipped them in sewage treatment water operated the pump and were able to drink it and no one got sick. So a couple of those would be better then a bunch of stored water. Also remember in your preparation to try and remain mobile. If you build and stock your house like FT Knox then your stuck there no matter whats coming weather toxins bandits you never know. So make sure your survival plans and supplies remain mobile don't tie your self down to one location. You already have the vehicle for the job.