Thanks for the video, very helpful. Only thing I would add/change is that it's much easier to get to the spring clip with the Speedo out the way which is just a couple of 10mm screw bolts
From when I did this the part was 105 pound i believe from main dealer and it takes about 0.33 hours to fit At a normal garage because of rent and insurances which are mega expensive you can expect that 0.33/h labour to cost you 26 pound!