H
holmslaw
Dual rcd boards do not, and have never complied with regs.
The main bonding to gas and water must be in place, if not you must install.
There are no other requirements to bring circuits up to 17th edition, regs not retroactive. Plus it is impossibe to know how deep cables are buried, a bit of 17th B*****x.
Fit a standard cu (assuming not TT) with rcbos for lighting and power sockets, cooker can be on mcb.
Watuonabout Chris, the above is what I said