I wanted to know if anyone has any place where I can find emergency bars or other forms of food that offer high calories in a single form. I am experimenting with several bars that have 150-300 calories per serving as well as the liferaft bars which have 3600 for a vaccuum pack. I have used MRE's in the past, but they are expensive (I am running low on the ones I was issued)and they take up a lot of room. Thanks.