Completed

Multiplus II 48/5000/70

Cerbo GX

SmartShunt (from old system)

Enersol/Leoch 48-100 LiFePO

Dual Battery Bracket from Leroy Merlin (cheapest bracket I could find, not bad, same metal as the server racks I usually work around)

ARB/ToSunLux Fuse disconnector (160A) - 200A was overkill since I don't have big appliances, I run a gas stove, and 2kW geyser (soon to be removed)

I opted not to use a battery busbar, I couldn't find something that could handle 400A easily, end of the year suppliers had low stock levels - I'll install a good busbar topology when I install the second battery.

The final phase is to build a well-vented cabinet, disguised as the rest of the cupboard...