Mrs MV and I did that for a couple of years, Dot.
The trick is not to try and duplicate life as it is now. Much easier today.
Gas stove, gas HWS, gas fridge, boil the kettle on the stove.
Mud brick, rammed earth, or rendered hay bale construction for insulation.
Learn how to rewire an old washing machine motor (for instance) for DC.
You can also turn them into alternator/generators.
With a decent 12V motor, plus chicken wire, plus spinifex, plus two shower bases, plus a 12V water feature pump, you can make a decent evaporative air conditioner.
Wood heater/stove for winter.