I hope this makes sense to you. It sounds like you have already figured out that with a growing teen and two additional children in the household, this will be a good start but that more will be needed over time. By doubling these quantities my guess is that you will be better prepared, food wise, than 90% of the population. And even without doubling the quantities, you will be better prepared.
I like to store honey and sugar not because these are great survival foods, but because they have so many other uses that most people are not aware of. These two items will store for many years and are bound to outlast you. Besides working as sweeteners for your food, they can also be used as an antiseptics or food preservatives. You can even preserve meat using honey and I recommend reading the following articles as it will teach you how you can benefit the most by stockpiling these foods:
With freeze dried foods you can get a good selection of nutritionally balanced foods and they are easy to carry, even if you have to bug out. They have a very long shelf-life of up to 25 years. The only drawback is if you don’t have water, you can’t rehydrate your food. Plus, it is ideal to have warm water so you can have a warm meal, so if there is no way to heat your water, then you will be eating a cold meal.
Per #17: Consider 25 pounds of sugar, even if like me, you don’t use it; it can become like money because so many have a sweet tooth for it. Next: at least the same amount of salt. (I buy sea salt for the iodine within and it’s a mineral all animals need in their diets so it too, can be used like $$. Third: black peppercorns, in past history this was used as money everywhere along the spice routes. Why? Because they have a very very long shelf life without losing potency. Then buy a pepper grinder, coffee/spice grinder and/or a mortar and pestle.
MREs come in boxes of 12 and each MRE is a different meal. You quickly learn which meals you like and which ones you don’t. If you were unfortunate enough to be the last one to the box you got what everyone else passed over. When I was in the service I think the worst meal was the beef patty. There are some similarities between the meals. They all come with an entrée, some side and a dessert. You get crackers and peanut butter or cheese, a condiment packet and usually a drink mix. We would even come up with our own names for meals that displayed our disdain for the contents. One meal, Meatballs with barbecue sauce was affectionately called ‘Meat nuts with Barf A Shoe’ sauce by myself and the guys in my unit. I am sure there are millions of other creative renames. I actually liked that MRE and I think it was pretty much my go-to meal as long as I could beat everyone to the box.