My T-jet 120 is 7 years old in October this year and has done just over 60,200 miles. It has no history of a change so I'm getting it done to be safe because for all I know it could still be on the original belt etc. which means I'm very much running on borrowed time. I've never had to do this with a car before as all my cars have been newer or bought with a recent change. My question is how much should I be spending I have a very friendly mechanic who works behind my work, he's done a lot for me to be fair but you can never trust them not to rip you off. He's sourcing the kit from parts world he said and he gets a business discount I'm guessing if that helps anyone price it up? I just don't wanna spend over the odds for it. Thanks FF