There was a tread very recently discussing this but for another Mavic wheel name, crosslink maybe? Principle should be the same, though you should use a special tool for the bearing cover, you can get away with circlip pliers or similar.
For the freehub removal, you need an Allen key in the end cap/qr and remove that you should be able to slot the spacer off, then pull the axle.
I think the freehub may pull off at this point, I've never removed mine.
In the aforementioned thread there was a link to the instruction manual to do the whole job.
Just take it slow, step by step and it often helps to take pics so you can reverse engineer the job to put it all back together.