Suppliers, batteries and inverters

Marypw

Our roof is south facing,   in Hertfordshire, with no shading.  We currently use 5500 kWh of electricity a year, home all day, do a lot of baking etc, but no EV.  
We  have quotes from Eon for 12 360W panels, string inverters and 5.2 kWh battery for £9630 or 8.2 kWh battery for £10381.
We also have a quote from The Solar People for 12x385W panels (4.6 kWh), with Enphase micro inverters  and 2x2.6 batteries at £10342.
We have discounted Project Solar, as they only offered an 8 panel package.
Any advice on suppliers - Eon have a longer lead time, so we could miss some sunshine.
String inverters or microinverters?
Smaller or bigger batteries?
Thank you!

2nd_time_buyer

Micro inverters or optimisers could be considered it you have shading issues. The most cost effective are Tigo optimisers.

If you can't afford to have it all now. I would be inclined to max out what is on the roof. Batteries are easier to add later.

If you go for the smaller battrry, which I presume is a Pylon then you can add extra batteries yourself easily at a later date. 

Contact Solar and Eco Renewables are both with a look.