No £1K no £5k min to set up, but it doesnt exist yet, maybe Alex has something new ? . All tapered poles are made on a tapered mandrel. The sections therfore are not interchangeable. Glass fibre will withstand the pressure of a telescopic pole but carbon fibre up till now will just part under pressure when trying to lock or if you fit a locking collar cannot take the inward pressure.
Maybe take the locking joints of a glass fibre telescopic and an inch or too either side, and combine with carbon fibre sections but you may be talking about a hand made job, I have thought of it but cannot quite think thro into 3 dimensions to "see" it. Peter has his new pole and uses the hose to stop the telescopic sections collapsing, its a good idea and may lead onto something else.
Its your topic, have you any suggestions ?