New gas meter ,no pressure drop, 3/4 imperial copper pipe which goes under a concrete floor to a free standing cooker approx 3m pipe run which comes out the floor in 3/4 copper ,pressure and gas rate fine.OAP has bought new free standing cooker and wants it fitted. NO pipe work to any other appliance except cooker.To install a new gas supply to the cooker would cost a lot of money with the kitchen layout. What would you do ?