For parts, including oil, filter, antifreeze, head skim, head set - I reckon £150 - £200. A good opportunity to change teh cambelt so I'sd do this too. Labour could be 8 - 12 hours, dependign on the experience of the mechanic. It's a big job and you want it done right so either find a very honest, reputable and competent independent to save on the labour rate - or bite the bullit and go to the main dealer and pay £80 / hour.