Sorry for the late reply. I got my parts from TPS Milton Keynes. I got the cam follower, dv and pcv at the same time and dsg oil and filter. They had everything in stock. I did try VW first but they would have had to order the bits in.
I had already replaced my dv and pcv a few days ago. Very easy but the dv was a bit fiddly. Hardest part for me was taking the electrical plug off lol.
I changed my cam follower today. Early 05 gti. Slightly different then the diy guides but simple enough. Took about an hour.
The steps I took.
Removed fuse 25 fuel pump fuse
Two plugs on fuel pump. The grey one was pointing toward the engine so all I did was turn the nut slightly so I could get access to the clip to pull it off. You will know what I mean when you see it.
There is a rubber/ plastic pipe on the right of the fuel pump. It just pulls off and gives you a bit more room to work with. Also remove the pcv pipe the one in the way of the fuel pump. Will be obvious when you do the job and push it out of the way.
Now I had no pressure relief valve. So I carefully undone the 19mm fuel line first slowly turn by turn and no pressure at all. Just a few drops of petrol came out.
The second fuel line was a pain. I could not see what tool fitted the hole. I though it was an Allen key shape but it's not. It's a splined bit. Lots of little splines. I have a sealey torq bit set. I found it very easy once I figured out what bit fits it to use the bit with a 10mm ratchet spanner to undo it. Again when you see it it will make sense.
After that remove the three bolts holding the fuel pump in. My fuel pump was stuck like a good un. Do t use a screw driver to pride it off. Twist left right up down slowly with a pulling motion and it will eventually come off. My cam follower was worn and I think very thin so I am glad I changed it.
The old cam follower just comes out. Put the new one in and put everything back together. Lot easier putting it back.
It's not hard although some of it can be fiddly.
Don't pay anyone to do it for you. Do it yourself and the felling you get once the job is done is amazing. Lol.
If you need more help let me know.
Ps sorry for the grammar. Very tired. Got early start and on my
Phone.