Camshaft oil leak

Hello all, 2004 MG TF160. I have an oil leak from the exhaust n/s seal.
I understand spécial remove and insert tools are required. Question 1, is it a simple job or are there complications to look out for? and 2, where best to get the tools to do the job?
TIA
Ian

Have read of this. https://www.the-t-bar.com/forum/9-mgf-tf-pitstop/94958-rear-camshaft-cover-seal#175188

In the linked thread that David has provided it talks about a video on changing the camshaft seals in the how to section by mgfbluestreak but I can't find this video. Does this video still exist, or am I just missing it in the list of videos?

Mark, it's just a quick section of a longer video at 20:50.

Thanks David for that tip about where to find to portion on the video about camshaft seals.

I must say, I was hoping that the video was showing someone fitting new seals in situ. My wife's F needs new front and rear seals. The rears can be fitted with the cylinder head on the engine but I can't quite figure out how to install new front seals with removing the cylinder head.