No, didnt get it skimmed, cleaned it all off to near mint, checked all over with a steel rule. No warping or deformation. Have finished today building it all back up. Have run it for about 45 mins and no problems yet (touch wood), getting a good long run tomorrow. Renewed: Water Pump All pulleys and tensioners Cam and timing belt all gaskets 2x valves Flushed coolant and oil 2nd hand rocker cover and cams Turned out the whole problem was caused by the guy that was going to buy the car before me, thrashing it from cold after being stood 3 months seems to have starved the camshafts of oil, outlet cam stuck absolutely solid, snapping the cambelt. But if it hadnt, I wouldnt have the car now, and for so cheap. Literally took a sledgehammer and heat to remove camshaft, cam and cover ruined, metal splinters, huge gauges etc. Will update tomorrow after a good run.