This is the bucket o’ grub I have handy. [Disclaimer] I’m not affiliated with the company but did find out about it from another member here. That bucket plus shipping came in at a few bucks under $100 when I ordered it. You have to call or email them to order, they don’t have web ordering set up yet[End disclaimer]It comes in at 400 servings. Each serving size has a relatively low caloric load but appears to be well balanced. I’ve got 3 small kids so the small caloric load is fine for them and the wife and I can double up as needed. I also have a few things (a couple ten packs of 400 calorie Millenium energy/food bars and a 12 pack of MRE entrees, etc) with easy prep and long shelf life in a reusable grocery bag in the pantry with room to dump in some canned goods and the what not to supplement.
Even though I live in BFE (town of under 4k) I am within two miles of 3 gas stations, a drug store, and a grocery store. I can drop her off at the grocery or drug store to stock up while I gas up the car or I can go gas it up and stock up while she gets the kids ready and then we can be gone, quickly.