We just went through this during the renovation. Now we still need the network (and a "rain protection" over the meter box because of the drain pipe)

As a technician, a few things stand out to me that are no longer quite up to the state of the art. Since May of this year, for example, only a maximum of 6 circuit breakers (LS) per RCD (Fi) is allowed. And actually, the RCDs are usually arranged in a row with the circuit breakers, that's how it was done many decades ago. (but of course this is still permitted currently)