Sadly.. thats about the right price. I have 2 heads in mine...
Need to buy one myself tomorrow and a maintenance cart, so kiss goodbye to £500.
I feel like I'm being mugged at that price...
Mine is a PF-02 so if I can get it any cheaper I'll let you know.
Be careful about buying and importing from abroad... it's not so bad if the package can be declared a lower value or samples as you'll get charged the VAT on the price declared, but you'll still have to pay an import duty though... not sure how that is made up. I privately bought some ink from a guy in the USA for half the price here, asked him to declare the contents as samples but he declared £200 so had to pay £45 VAT and import duty

was still cheaper than here so not too much of a loss.