Doing some renovaions and when taking the ceillings down due to removing walls noticed that the house had bare earth wires running through it from the lighting circuits. I have planned to put a new cosumer unit in and get the meter moved. The house had ecomony 7 heating so was going to convert these to sockets as there arent many sockets on the ring main. Would it be worth while to replace the lighting circuits to or do a full rewire.