Yes, quite eye-watering for now!Cheapest ones I’ve found I can get so far are Fusebox at £106.92 inc VAT
Had a customer last week asking for a quote for a full AFDD board which had 15 circuits.
Soon changed his mind when I said that’s £1600 in circuit protection before we even start with the rest of the materials, labour, testing, certification etc.
If concerned, I would probably look at 32A AFDD just on a couple of RFC for the sockets, rather like amendment 2 suggests (I think, not got it yet!), rather than all circuits.