Buying non-Kosher food for home Emergency Kits

Question

The United States federal government, American Red Cross, and surely countless other governments and NGOs recommend that families have Emergency Survival Kits in their homes in case of a natural or manmade disaster, equipped with many different kinds of supplies, including a two-week to one-month (in some cases longer) supply of non-perishable food.

In an emergency, of course, one is permitted to eat whatever is available and can support survival. But what about actively preparing for such an emergency by building a survival kit equipped with non-Kosher food? Does it make a difference if the non-Kosher food one can purchase has a longer shelf-life than what one can purchase or prepare that is Kosher? Is one allowed to disregard a Kosher item that is available that is simply unpleasant and unpalatable? Does it matter if the cost of Kosher food fit for an emergency kit is cost-prohibitive?

Answer 1

The Gemara says in Shabbos (19a)

ת"ר אין מפליגין בספינה פחות מג' ימים קודם לשבת
The rabbis taught: one may not travel by boat less than three days before Shabbos.

( translation mine )

The Rishonim discuss why this is not allowed. The Ba'al HaMaor on that Gemara (7a in דפי הרי"ף*) writes that the reason is because he is putting himself into a dangerous position, where he would have to violate Shabbos to preserve his life, and one is not allowed to do that ab initio.

I would suggest that this case (of buying non-kosher food) is analogous to that case (of sailing too close to Shabbos), because in both of them, one is placing himself in a dangerous position where he will have to break הלכה in order to save his life -- something that he is definitely allowed to do, but still should not plan on doing so lechatchila.

CYLOR ( I haven't, but I have the feeling that he would ask me exactly how much more expensive it is to do it kosher, and I would end up buying kosher :P )

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*_{link appreciated!}