If you do the long-term way, get what you have perfectly installed with future plans in hand.
Save the funds.
Look for bargains with the saved funds if and when needed.
Cause you may i.e. decide on a inverter, buy today, years later you want to expand and you cannot for whatever reason.
I don’t know, if it was me, I would build the system bit for bit with plug-and-play to remove/swap/alter parts quick and easy, as the core wiring is in place. Tick battery cables to handle like i.e. a 15kva for example. Do it once.
Eskom is here to stay, if it reverts, SA goes broke, so “everyone” is making sure we go forward, renewables coming online, battery banks all over SA etc.
And the shock they gave the country of 2025 increase, naaa, not gonna happen. “Everyone” is pushing back, the GNU has a job to do.
Methinks too, WHEN Eskom is split, then market will start dictating the rates.
At least, that is my current “feeling”.
My approach? Focusing on my 24/7/365 loads, not the peaks. And when loads creep up again, swat them down. Carefully considering expansion if I have to. We are 9 people on the property, running on a 5kva with some “attitude adjustment software” from time to time.