Hi Steve
The distro looks tidy but there are a few points that might be important:
The breaker looks to be redundant? The outlets look to be the same rating as the inlet (eg 32/3 -> 3x 32/1) so everything will be protected by the upstream protection on the source.
Make sure you earth-bond everything metal. So this means the rails, handles, external metalwork etc. It all needs to be bonded to earth otherwise a stray live cable could touch exposed metal and cause that item to become live without triggering the protection.
I like the look of that meter, do you have a link for more information?
Cheers,
John
