So I’ve been shopping. Hunting for cheapest options did mean several suppliers as I didn’t want to buy unbranded, low quality components in safety critical areas (such as 600A switches).
We now have most of the supplies for all the glassfibre work. Plus the majority of things to get the batteries, inverters, solar and 12v distribution installed.
Plenty of other things will be needed but this is enough to keep us busy for quite a while 😊