The moment you go over 50k you're heading into inverter and battery territory, but if you don't own the property... well, no inverter and battery for you then.
And how "stop-gap" do you think load shedding is? My money is on stage 6 through most of the rest of this year. If we're lucky we might see a drop to stage 4 once they get Kusile back online. Next year I expect load shedding to be all over the place because of political bullshit.
Good luck finding a decent 1kw solution at that price now. Most units that were about 15k for 1kw are now 1.5k-3k more due to demand (there are still a few places that have old stock of 1kw units at the old price if you shop around). Also, again, plenty of 1kw solutions in the 16.5k-18k price range, but they take half a day to recharge. If you want 1kw and a reasonable charge time, you're looking at 22k-ish.