Moonshine stills can be made easily or purchased online. They are great for medicinal purposes (used internally or externally, internally no germ will come near you, course neither will your wife) and the stuff will work in your Zippo or can be used to power certain types of motors.
Seeds if you like to eat and a book on edible and medicinal plants. I have purchased books on DVD written on every subject dating back to the 1840’s and they contain a ton of methods of living off the land. Everything from blacksmithing to canning garden produce to butchering and curing and canning every kind of meat except humans. You are on your own there.
German or American made tools are the best and the older the better. You can not buy the quality of them anymore. Farm auctions are a great source.
One of the things I always suggest to people - which usually gets quizzical or disbelieving looks - is a good vegetarian cook book.
You grow stuff (or will be) - may as well make it fun and interesting to eat. Salads get depressing fast, and don’t really fuel you.
Agreed on the still. Raw shine is rough on the throat, but is amazing as a disinfectant. As you said - both inside and out!