Hi you quoted that you wanted something reliable and the car proffered is over 100k, with that sort of milage things will go wrong therefore I think a new clutch could be the least of your problems in the future, take in to consideration EGR valves, swirl flaps, sensors, oil leaks, fuel pumps, the derivatives are endless, as I stated before the legendary reliability of Audi is built upon the older models Euro4, a very wise car trader once said, you wont find a perfect old high milage car as a free gift in a packet of Cornflakes.
Steve.