I can vouch for jaco, not only a seller of the goods but a expert in the setup, my advice is to get the stuff off someone that knows the product , as it needs to be setup!
I have gone with a 10kva Quattro victron, And 21kwh pylontech lithiums, my house run as normal with all the bells and whistles, hairdryers and geysers and aircons included and all I use is like R80-R120 a month on eskom (only due to bad weather)
Good luck bud!