We kinda have something like that. Maybe not as portable. Got the pop up camper fully stocked with canned goods, water, Propane etc. If anything happens could survive on what’s in therefor a lil while. Then I also have a chunk of land in the mountains that has some getaway stashes Of stuff

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1993 e300
1995 e320
1994 e320
2006 s500 4matic
2004 Jeep wj overland
2001 Ducati 748
2004 Honda shadow aero