Hi Steve, 

That work should take a mechanic about two hours of labour, but obviously hourly rates vary considerably from garage to garage, and some places qill quote a fixed price rather than an hourly rate. The timing belt itself is about €30 from most motor factors, though we'd recommend changing the water pump and tensioner pulley at the same time, which would add up to about €80 for parts at the time of writing (looking at www.MicksGarage.com).