I needed to fit a new heater matrix to my wifes sportrak and was quoted any where between Ã‚Â£15 to Ã‚Â£75 secondhand. The Ã‚Â£15 one had gone the morning I turned up to remove it and one at Ã‚Â£20 turned out to be a fourtrak one. Then someone helpfully e-mailed me with the number of a company who supplies them for Ã‚Â£57.50 plus vat and carriage new! The company is called motorads of Redditch and are contactible on 01527 65182. They make them in batches of 5 so they should have a few on the shelf. Well worth fitting a new one at that price as its a ball ache of a job, even worse if you were paying for labour.
P.S. The sportrak is for sale @ Ã‚Â£1200 with a full test and new heater matrix