You can get it off any 6 speed Clio I'm going to go to the breaking yard tomorrow again as I am preparing to retrofit climate control I just want to have a practice on how the dash comes apart. What kind of gear knob did you buy a normal RS one or one of those pool ball looking things. Anyway I will have a look if there is any 6 speed ones there I took a gear knob apart here its held on by 4 plastic bit teeth so removing should be a strong pull up while rolling the base in a horizontal circle but too late for you I guess. Do you think it is the gear stick plastic part or the internal gear knob plastic that is damaged