Stu,
Very easy with the tool kit, particularly the thin walled socket to remove the lowers. It’s not impossible to do without it though. You can use an allan key but it’s a bit of a faff to get them back together doing it that way.
The cut out cassette lock ring tool tool helps too as you don’t have to remove any thing to get the air shaft apart but you can still use a park cassette tool(think it’s an fr-5 from memory) which has quite a deep opening inside which clears the air valve but you need to take the rubber bumper off first.
Obviously you need grease and oil to reassemble them too.
If you get a pair and are near Huddersfield you are welcome to use my tools as they are not cheap.
I can recommend the forks. Had the first version, they had a creaky csu so we’re replaced recently with the 2s which shouldn’t feel any different but seem better. Smoother and better damped. They are a match for my pikes on the other bike.