Your water stores are looking good. Just don't store it all in the same place - water is heavy, spread it out - under beds, closets, behind the couch... And don't forget the water in your toilet tanks and water heater tanks. Thin milk-jug type gallons of water WILL break down and leak in just a few months time, get stronger jugs. I save all my sturdy gallon white vinegar jugs and fill with tap water for non-potable and washing. Get a small hand or foot manual or rechargable pump for your bottles - the convenience is well worth the small cost. If my pumps don't fit my bottles neatly, I cut a slice of pool noodle to fit in the underside of the pump to snug it up.

A can of chicken and a can of beans makes for a boring meal without a little spice. Add quality sea salt for the added trace minerals, and some other spices you prefer. Thyme, rosemary, cumin, cinnamon, clove - any kitchen spice really, stores well, adds flavor and medicinal properties to your meals. Also, chix and beans and maybe a veg would be really tasty added to a can of soup or chili or even to the chef boyardee. Throw in a handful of rice or oats to bulk.

Dried beans, grains, and pasta can be cold soaked beforehand to speed cooking and conserve fuel. Oats can be soaked overnight and eaten as is. You can bring your food to a boil, then remove from heat and wrap the pot with a comforter/blanket for awhile to finish cooking or retain heat for a later meal. If you have any insulated cooler to do this in - even better.

Rice, quinoa, and dried lentils all use the same 2:1 water:food ratio to cook. You can cook rice, or quinoa, and lentils in the same water.

Get a canned fuel single burner stove that doesn't require ventilation. Found easily at Walmart or an Asian food store and used inside every day by ppl worldwide without consequence. A collapsible solar oven is a fine idea if you get several hours of sun, and you can bake a basic rustic soda bread or quick bread easily. Or just make biscuits in a pan on the stove burner. Pre-make a dry biscuit or bread mix and vacuum seal it. Store these next to canned/boxed milk or whatever you'll mix it with.

Crackers and literally almost evthing else store for a very long time in a vacuum sealed bag or jar. Jerky, dried fruit, dehydrated veggies, grains, legumes... Don't vac seal salt or sugar unless you want to chip pieces off a rock. Pick up small vacuum sealer set like these -

https://a.co/d/8hPvTHy

https://a.co/d/hsJIUDa

Get a dedicated pot for water or coffee - whatever you drink hot - and wrap a towel or sweater around it to keep it hot longer. Keep in mind caffeine is a stimulant and a diuretic and will cause you to get dehydrated quicker, and use more of your toileting resources.

A simple toilet is a 5 or 7 (adds height for elderly or handicapped) gallon bucket with a decent lid - a short piece of pool noodle sliced lengthwise to push onto the bucket rim or a gamma seal lid- layered plastic bags inside (8 gal garbage bags work, even plastic grocery bags work in a 2-3 gal bucket). Pick up a couple of compressed bricks of aspen pet bedding (Walmart or any pet store), put a scoop in the bottom and another scoop every time you use it. Keeps odors down, is lightweight, and cheap. I store mine pre-fluffed in another bucket beside or nested in the toilet bucket. It fluffs up to an amazing amount so don't fluff unless you have storage space. Some people prefer compressed horse bedding pellets to the aspen shavings. Of course, keeping urine and feces separated is a huge sanitary bonus and keeps odor to a minimum.

You can often get a Dr to prescribe 90+ days of most meds to rotate through if you explain your reason or say you'll be traveling. I need to pay cash sometimes for an extended Rx but it's worth it.