Well, as you are all no doubt waiting with bated breath for the outcome! Have just been and bought a ‘small’ - 4kg - Indesit drier, which I can easily fit in a cupboard upstairs. I justified the purchase in Spain of an electricity consuming item on the grounds that it was approximately half the size of the UK one and I don’t have quite so much laundry to dry.
So, thank you all again for your advice!