Just a quick update went to Russell Automotive and they quoted £130 for the DV and fitting. He also said its not worth changing the Cam Follower. The audi specialist in harrow quoted half the price, so I'm going to get it done there. He also mentioned if its worth changing the cam follower. But after reading some of the threads, I think I might as well, so I'm going to change that for my peace of mind.
Thanks guys for your help.