Gas cooker (Denvilles)

50 cm freestanding Newworld/Newhome gas cooker with separate grill and oven compartments, fans and racks. Replaced because decided to get electric cooker. Working well, and in reasonable condition apart from a noisy fan in the grill compartment and one knob covering part broken off. May be possible to repair. A gas engineer will be needed to reconnect the cooker to the mains. It has been outside but under a tarpaulin for the past 4 weeks.