basically, done a EICR for rental. 12 way wylex with 3871 MCBs, no RCD at all, so a few C2's and C3's. ideal world is a new CU with RCBOs, or even a dual RCD board. landlord won't pay more than necessary as it's a short term let and due to be demolished as soon as he gets planning for 2 houses on the land. upfront RCD would get rid of the "fails" on the installation, but 1 rogue circuit and the lot is dead. what would you do?