Thanks everyone, I contacted Flycentre they have no aircraft available and therefore couldn't even tell me how much the cost would have been, NorthWest Helicopters have no Jetrangers anymore, Tiger Helicopters didn't answer the phone - I will chase them today.
Rise Helicopters were helpful, they charge £500 plus vat wet, they say that their insurance dictates that you must have 250 hours total Rotary Time. They also insist that you have a check ride with one of their instructors and 10 hours on type before solo? does this seem reasonable?