We currently have a similar system installed, but we're moving house at the end of November. I started looking for quotes and to hear how long installation waiting lists are at the moment, and the 2 companies I heard back from are both around R100k. Starting to consider buying my own components and getting an installer instead of going for a one stop shop again. Also not too happy with the batteries in the quotes...
If you still have the installer's details, I'd appreciate it if you could forward them to me, please!