Hello I have a Clio 197 that has a clunking noise coming from the front left side of the car. I've sent it to a mechanic (hasn't worked on any Renault RS before) and he says it's the upper and lower ball joints on both sides which is around a £600 pound job which is a hell of a lot of money for me as I'm just a student. Anything else it could be that I should check out before pulling the trigger on this job?