The ultimate doomsday bug out trailer just happens to be a teardrop trailer. This recent post from one of my favorite blogs, the Small Trailer Enthusiast, features a Little Guy trailer that is tricked out for the end of the world. The Bug Out Survival Shelter (B.O.S.S) has a sink and stove, gun rack, kayak rack, hidden interior storage and is completely off-grid. The trailer will only be available on the website (of National Geographic Channel's "Doomsday Preppers") Tim Ralston.
You might want to hurry up. You have less than three weeks to get ready.