Then you can do it yourself for half the price
3000 Watt wet/dry vac and stick your own side entry on it £220
carbonfibre tubes for a complete set (5) - cant remember what they are now but 50% less than what the dealers are charging - £300
Ali swan neck from grippa or streamline £60 or £90
30 meters of hose from century hoses - or eBay if you prefer £110
Gives you every thing for £700 "ish" and reachs 10 meters (33 feet)
or buy GVS 35 feet system £1300
all the above plus VAT