I think the best situation would be a remote, well-situated, spacious, well-stocked, defensible stronghold inhabited by capable, compatible, well-armed people and a kennel filled with large, vicious attack dogs. Prepping such a situation would require adequate wealth and persistent, systematic planning.
If you live out in the suburbs of Long Island, it's best to know all the nearby Gun Owners in your immediate neighborhood. Put together a well patrolled perimeter. The way we plan to deal with non-gun owners is as follows:
In a "minor" SHTF scenario, like a natural disaster, help as many as you can, the Government will eventually restore law and order and private charities from around the nation will come to your aide.
In a major SHTF scenario, like a terrorist attack on the power grid, or a Dollar Crash, there will be no Government for many months, possibly even years, and millions will starve. Forcibly evict all non gun owners, because if you don't they'll conspire to murder you in your sleep for your stores.
Use the materials from their homes to repair your homes and build basic walls and defensive structures. Use their property to plant crops.
Also, make sure you the gun owners agree on Trial by Jury, this way there is some degree of Law and Popular Sovereignty even amongst yourselves. Kill any gun owner who disagrees with Jury Trials --- this person craves to be a local Tyrant.
First you want to forcibly evict people from their property, then you want Jury Trials. Before you start killing people without jury trials.
You are a ******* narcissistic idiot. What a ******* combo.
--so now what?