Here's the challenge: Imagine that you have enough money to buy all things you will need to survive on your own in a manner as comfortable as possible. But once you've spent the initial money, there won't be any cash coming in, other than what you can generate on your own, selling whatever it is that you sell (even your own labor, assuming that there is enough time in the day for that).
You can spend any reasonable (or even unreasonable) amount of money on land, buildings, farm equipment, seed and plant stock, livestock, vehicles, wind turbines, anything at all.. you name it. But after you have done so, you are as self-reliant as is possible. As much food as you think you'd need, and of the types you'd need, you'll grow it (and process it) yourself.
Any fuel that you use, if you can manage it, should be self-produced. If you drive into town, it should be out of necessity as little as possible. Any of your other needs that you can think of, if you can meet them yourself, you'll do so.
Describe what you'd initially buy, how much you think it would cost, who you'd take with you, where you'd do this, what things you'd still need to purchase and how often, and in total how much cash you'd still need each year to survive (don't forget property tax!).
Now, to answer my own challenge.
What I've been mulling over is this. I'd buy some land, at least 40 acres, but maybe as much as 640 if I could. Somewhere out in the middle of nowhere (specifically west Texas). I'd build a home or two on it, and the farm buildings I'd need. Several large greenhouses, as many as I could in fact. An orchard.
As for livestock, several dairy cows. Ideally, a breed that is good for beef too, rather than keeping two kinds. Several pigs. 30 or 40 chickens. Maybe some goats, maybe some sheep.
I'd grow about an acre or two each of most grains, for next year's seed and human consumption. I'd grow an unknown amount for supplemental feed for the livestock. Probably also that much potatoes and other non-grain staples. (Beans, etc.)
I'd grow sugar beets, depending on how easy it is to make actual sugar from them. I'd like to have several beehives.
As for fuel, several acres (up to 20) either of canola (doubling as cooking oil) or jatropha (if so, an acre of canola for cooking oil). Small tractor would also be diesel.
Orchards would be a few trees of everything, rather than all just one or two. Fruit, nuts, some things more exotic if I could manage it (citrus, avocadoes, etc). Definitely olives in there too.
The greenhouses would be for things that don't store well that we still want full year round. Vegetables, exotic stuff. I'd even go so far as to try to grow coffee, chocolate, bananas, vanilla... on and on. Maybe even a couple coconut trees.
Also thinking I would grow some cotton. That and wool would allow for some cloth to be made, assuming you had the machinery for it.
Electrical power would be combined solar and wind. As much overcapacity as I could afford. Heating still bothers me, even with geothermal heat coils buried, you still might need an actual furnace. And unless you had mineral rights to the land, and some natural gas under it, what then?
Wells do well in that region. Would still probably want as large a cistern as possible. Careful irrigation would be necessary, but feasible in all but the worst droughts.
My children would be homeschooled. We'd have several diesel cars fitted out for the veg oil, so that we could go into town when need arose.
I expect that toiletries and cleaning supplies would be needed and not self-produceable. Some kitchen supples (wax paper, canning supples) also. Clothing, at that... just because it might be possible to make your own cloth, doesn't mean there'd be that much time in the year to do it.)
Other than that, only outlays would be telecom bills and property tax.
Maybe some of my inlaws would be along for the ride (that's why there'd be more than one home on the property). Maybe a few friends might be invited along also.
Any criticisms welcome, sure I missed a few things.