The thing you have to watch when changing the gasket is the torx bolts and make sure you do not over tighten them.
If you do,you will probably snap off the top right lug on the cover.
Other than that,it is pretty easy.
The gasket kits are cheap and I would probably use gasket sealant as well.
When I first changed mine,I had a slight leak above the timing belt so tried to tighten the bolts up a bit more.......big,big mistake
Another rocker cover later,I used gasket sealant and went easy on the torx bolts and job done.. and no leaks
Just don't over tighten them mate,use sealant and you will be fine
The bolts are about 6mm thread with a torx head.
You will need torx bits to undo them
Here they are and here is the lug you will snap if you to them too tight
Always glad to help a fellow coupe owner bud
Glad you took the advice about the gasket sealant........if I had used that first off,I would have saved myself almost £60 on a new rocker cover .
We live and learn as they say
Paul