Well thought and written. I write to entertain only myself, and it can get dark that way. I haven't written a story recently because there really doesn't seem to be a way to write and slink away from the consuming masses simultaneously ("what are the rich doing?"). In an ending of the consumptionism paradigm (TEOTWAWKI) philosophy, I have a lot of tools and skills. People will probably specialize at various skills and trades, so I plan to fix things that are needed or wanted. I make working stuff out of nonworking stuff. For now, I can still buy parts, but I will shift to salvage when I have to.
As for your 10-20 acres, that's pretty ambitious unless you have a group or small machinery (farming vs foraging?). If it helps, Ben Hartman is doing a lot of work on "less is more".
Scale choice is going to be the real gamble: small enough to hide, or big enough to support security watches/forces? We've spent the last 120 years removing people from the land, and the survivors will be forced to reengage in one way or another. Can the people who know the land handle the demands of the ones that don't?