Each type you listed (save a couple) will have its uses in a community (group if you will), generally having a small trusted group with each having several skills in the various fields (prepper, homesteader, and survivalist) I believe would be an effective team, though as each group works together would it not be best to ensure that each has overlapping skills in case of injury, death, or other reasoning they can not fulfill their duties?
“Next thing I see is, they hanged the colored boy, ’cause they caught him stealing. And they had established, I think, about 1,000 trees in the forest out in Mark Twain to hang people from if they catch them stealing or whatever. And I had a big dog—my dog died of bone cancer of all things two years ago. Buddy was half-Rottweiler, half-German shepherd. He was a dog, and he was with me in this. And I also have a police riot gun, a 12-gauge, that holds eight magnum shells. So I’m seeing all this stuff happening, and then I look around, and my dog’s gone. So I picked up my shotgun and went to look for my dog, and I found five men, and they were already skinning him to eat.”
Salt, pepper, some chili powder, mustard, sugar, honey – the list is endless.  These items do not need to cost a lot nor do they need to take up an extraordinary amount of space.  When push comes to shove, however, your eating experience will be greatly enhanced by having a variety of flavor enhancers on hand to enliven the taste of your stored food stuffs.
What Jennifer, a self-described prepper who declined to share her last name for security reasons, didn’t anticipate was the sheer force of Maria’s rains and 155 mile per hour winds — and how little the storm shutters would do to protect her home. “I was taking water out of the bedrooms, the living rooms, the hallways,” she says. “The house was flooded.” At one point, a piece of debris flew off a neighbor’s roof and got stuck between the outside wall of Jennifer’s pantry and the storm shutters, ripping off a pair of windows in the process.

afraid i haven’t. my experience has been that the average person will resort to lying, stealing and often violence at the first sign of trouble. there are exceptions, of course, but i haven’t found any reliable way to identify them before the shtf. even longtime friends can turn on a dime; and relatives…well, just consider what happens when some well-heeled person in the family dies! wish i could be more encouraging, but i just don’t see it that way.
Dozens of websites and books offer advice on supplies to have on hand and in stock if "the end of the world as we know it" – TEOTWAWKI, as it's known in survivalist circles – comes to pass. Here, then, is a rundown of the supplies you'll need to ensure that this proverbial "end of days" is not an end for you and yours, but rather a new beginning. [Could Cockroaches Really Survive a Nuclear Blast?]
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For the Soon to Be Ready for Anything Prepper

The Ultimate List of the 8 Most Important Surviving Skills that will Make the Difference between Life and Death during a Crisis