Not sure that a well is useful on a barrier island. Fresh water floats on salt, but still....consider perhaps a desalinator . How about marine evacuation to NJ? Or is evacuating to NJ in a disaster an oxymoron? You could use your new truck to go to the north shore with your new boat, and cross LI Sound to Connecticut-(another oxymoron?). For Hurricane evac, it might be more sensible to either leave really early and go to the Catskills, or plan on staying on the island and moving inland to public shelters. LI is a big damn island, and generations of my Van Brunt ancestors weathered the storms in Southampton (except for the branch of the family that went down with the CC Colgate.. Should be some really fine beach-combing on the south shore; in Chicago, dumpster diving is the closest I can come to beach combing...