It is possible to grow loquats in containers. These will remain small and compact, and can be placed outdoors when the weather is optimal and moved inside under a bright grow light when the temperatures are too cold.
That depends. The container will have to be deep, and the peanuts need to have nutrition. You would have to keep the nutrition levels where they need to be kept....
Your cooler situation seems pretty efficient. Not much else to add, besides maybe just pack it with as much ice as possible, and if it's at someone's house, keep it...
Keep an eye on your plants and notice if parts of them are going missing. It would require some pretty complex training to teach your dog to 'guard' your plants...
If you're freezing your applesauce, you can put it into a plastic container. If you're canning it, you have to use a glass jar so you can sterilize it and...