Me personally would go for a un-modiffied/un-abused example...which i did. Mine had original ford exhaust on and everything else standard apart from the wheels, and i payed 6k, but mine's only done 60k. But the ones that sell quicker are the modified ones for some reason. All cosworths. wether there modded or standard will eventually need a rebuild, or people would want a rebuilt engine. You should still expect to fetch around 5.5k for her matey