Ok thanks Michael
The existing supply pipe bayonet connector may be too high up because I am moving the cooker along the wall by 150mm I think the connection is nearer the top & in the 'hot' parts. I will check more closely as its over at my daughters.
So if the pipe loops/hangs over the lower/mid section of the Hotpoint it will be safe to touch lower down?. (its how it hangs at the moment, but different make cooker although it also has vents at the rear as they all do.