I too live in remote country - maybe not as remote as that. From what I know vital greens is an okay thing if you are starting out in nutrition as it gives your body a boost on things you may be down on - but its not entirely the holy grail of health. on the I QUIT SUGAR website they tout it - i think it is a commercial interest thing.
The Monk fruit powder if its pure monk fruit won’t get you out of ketosis. But these: Natural Vanilla Flavour, Natural Pineapple Flavour, sound suspiciously like code for MSG which is a dangerous neurotoxin which can cause seizures and is highly addictive. ditto for the Thaumatin - which is an isolate which means it is basically a pretty nasty ingredient - if you really want to be HEALTHY and not just in ketosis I would only have this for a short period and then get off it - Xanthan Gum - is a glucose derivative so its pretty dicey. besides Vital greens is a rip off. You can use that money to get much better value nutrients - its your money you can do what you want with it - but I wouldn’t bother getting my nutrition that way all those isolate in the ingredients mean that they have taken a good healthy ingredient - chemicalised the daylights out of it and spat it out in a chemical form - which your body may not even know how to process or make bioavailable - WHOLEFOODS are better by far where possible. Use food as your nutrients. Things like spirulina/chlorella have more bang for the buck and are able to be purchased on eBay cheaply and last months and months.
I would say best bet is sprout things - mail order organic wheat berries and sprout them - harvesting at seven days… Or other such dry goods that you may be able to sprout at your own convenience which store well…
also - whatever climate your in - it is suited to grow something. Establish what that is, and plant. I have a pretty rough climate, but we manage a quite a few pumpkin, amaranth greens and purselain grows wild as weeds (which I use in traditional cuisine) and I have a few produce animals to eat from. I pack my deep freezer with as much as I can - are frozen veg an option?. I avoid cans as much as I possibly can - with the exception of BPA free coconut cream… Coconut oil in bulk would be a good option as a little will help you reach satiety quicker.
Another nutrient dense food that lasts is nuts, as well as sardines (I can’t eat them personally but they are apparently top stuff in nutrition). You may wish to opt for a 10kg bucket of ghee which can be stored unrefrigerated. Also I find cabbage will last for ages outside of the fridge and has quite a good nutritional profile.
There is a dry leaf I eat (its middle eastern dish) it comes in big bags and looks like weed lol. but its extremely nutritious and its eaten as a stew… Its called dried Egyptian spinach /jews mallow and is served with meat and fat (keto) - skip the rice. you can order it online and it stores for years! maybe it grows where you are and seeds might be of benefit? The reason I mention it is that it keeps well dried for years and years and is very healthy next to meat!
If you do want to spend money on minerals I recommend this one
or this one
https://www.safe.com.au/product/380/
There are other things that I can’t think of - but I say in closing to plant what is suited to your area!