Used Mcculloch Lawnmac 16″ Petrol Push Lawn Mower Fully Serviced

used McCulloch lawnmac 16 petrol push lawn mower fully serviced by The Mower Man Rutlandpaint and plastic faded and surface rust underneath but works as is should I have replaced the engine with a newer one to make it more reliable oil changed, petrol system cleaned and blade sharpened so ready to use Cash on collection only (My company - The Mower Man Rutland - www.thegrasscutterstamford.co.uk)