RichardH89

In general you're looking at a sensible setup. I'd suggest looking at some of the following tweaks, but it's up to you. Anything I say to be checked by yourself and your installer.
1. Consider the Canadian Solar 605W Super High Power Mono PERC HiKU7 panel, 10pcs, instead of 12-14 545W panels. This you should be able to fit to 1 MPPT. With the 545W panels you'd have to put maximum 8 or 9 in series on one MPPT to be safe, and that could make future upgrades to panels just a little more complicated. Not critical, but otherwise in the future you may have to consider mixing different panels on one MPPT, or putting two 13A strings in parallel, or fitting less than the maximum Wattage in total to the inverter, basically all things that would make your setup sub-optimal.
2. Kids/Guest geyser to stay on non-essential loads. No change to the element. Main bathroom on AUX load. Element reduced to 2kW, with timer.
3. Consider if one of the aircons can also be on the AUX load. For example, in the main living area, or close to the significant other's WFH area. 
4. If Sunsynk batteries increase the inverter warranty to 10 years, that's a big incentive to go for it. But personally I'm partial to the idea of 3 x 0.5C Pylontech or similar batteries up front, and saving a kW or so of peak panel output to help pay for it. I just think the system overall is more balanced like that, and you can store up power to help carry the loads through the night, including cooking in the evening, and still have spare for loadshedding at night.

I have a contrarian viewpoint ... It would be a terrible waste to have 8kW available from the roof on a sweltering Paarl summer's day (I know - I grew up there!) but the batteries are fully charged so output is choked to zero. What would it be worth to be able to run your a/c for free then? I say put everything on essential but be aware of what you use when, and automate some things (geysers) with timers.  My brother-in-law in Courtrai did an install in January and from what I heard they are happy (they also put everything on essential on my suggestion). I can ask who they used.

Thank you Mzezman! No particular reason for not having a look at the AM5/10's, see they are LiFePO4, so perhaps they are worth a look...I agree with the 1C vs 0.5C discharge. Will factor this into my equation. 

Hi forum, 
INTRO:
Long time lurker, been soaking up the wisdom for a while now. I made the decision to go Solar. Based in Paarl, WC. 
HOUSE:
Family of 6, 4 kids 8 years and under. All lights are LED, major appliances incl. gas hob with electric oven, 2 x 3kw 150L geysers, 1 x 24000BTU, 1 x 18000BTU and 1 x 12000BTU non-inverter A/C's, 1 x 750W Pool pump, 1 x fridge/freezer (energy efficient), 1 x large box freezer. We have a domestic on weekdays, so all washing, cleaning, ironing, etc. can occur during the day. Wife WFH. Our average electrical consumption for the past 18 months is 822 units/Kwh, fairly conscience about usage, June-August is a fair bit higher due to heaters/etc. But working on reducing this. 
PROPOSED SYSTEM:
8KW Sunsynk Hybrid inverter, 10kw Batteries (to be scaled in future), 12-14 +-545W panels. No desire to go fully off-grid, but I obviously want to be as independent as possible. I have a North facing roof (0-degree Azimuth I have been told), and +-20% pitch (if my building plans are anything to go by). Would like to future-proof the system, i.e. be able to expand panels and battery capacity as budget allows. Hopefully put everything on the essentials side, with a bit of smart planning/automations sure this would be possible? 
ASK:
I have received 4 x quotes, all within R224K - R243K. I have also (today) contacted the Powerforum Store to have a look at purchasing the materials directly and getting someone reputable to do the installation. I am pretty settled on the Sunsynk inverter, but as for batteries, I have been going in circles. Initially thought Hubble AM2 5kw as I could get them at a very good price, but the more I read the more I felt uneasy about using them, I know there must be 100s (maybe 1000s) of super happy clients, but there seem to be a lot of unhappy clients out there as well???
So my ask is, what else do I look at? Pylon UP5000's look pretty good? Is it worth paying the premium for the Sunsynk battery to get the extended warranty? Greenrich? HELP, please.
If there are any flaws in my thinking please point these out to me...I will proceed as soon as the Power Forum store can assist with a quote for the material to compare the two options. 
I look forward to any, and all feedback.