Thank you TrickkyD, He is also quoting the one's fatbobs have that only have a years test because they sat on the shelf, Still brand new though and not used.
It's up to you if you buy it or not but the price stands. But I would struggle to buy a 1.1 4500 psi with simular life for £80. There is still 10 1/2 years worth of use left in it which, including tests, works out at less than £16 a year for the tank.