Click on my hyperlink earlier in this thread. And from personal experience you will be suprised about just what garages do.
I am not saying you have to have it done at a specialist, each to their own, however I know where mine car goes.
CJGreen, your clio looks in tip top condition, hope it all goes well and you get the RS192 zorst. I don't think anyone is having ago at you about taking your car to where you are taking it, they just want you to know, as this sort of thing has happened so many times in the past.
I can guarantee i wont be suprised what some garages are like, i work in the motor trade. But its not always a case of something being done dodgy, usually its just doing what has to be done.
Why exactly is the cambelt kit so expensive for Clio's anyway?