i have seen the same system for sale on ebay, the price is currently £335 which is about fair,
The only thing is that you can buy a pure freedom BRAND NEW self fit system for £699, which they will deliver for £40, so i dont know it if would be worth buying this or just a brand new system.
The system would probally need a new filter change and after 30months the pump will probally be on its way out.