Hi Matt, there are a number of 10mm bolts along the top of the wing, these come out fairly easily.
You have to remove the wing liner and there is another bolt half way down the
A-pillar which can be problematic and awkward to reach, you need long extension on your ratchet.
There are two bolts at the base of the wing on the sill and these rust into the captive nuts inside the sill. I ended up grinding mine off after they started to rotate. You then have to find a means of re bolting these holes. If you need help I can explain in detail but it required the use of a lathe in my case.
Finally there is a wing brace at the front of the wheel arch that needs unbolting and two nuts if I remember correctly that join the lower edge of the wing to the bumper.
It is a bit of a faff separating the wing from the bumper and some books recommend removing the bumper cover to make it easier.
Think that’s all although from memory the front top wing bolt is also fiddly due to restricted access.
I bought a bag of 10mm stainless bolts and nuts and replaced all the bolts etc and the two sill bolts will benefit from some washers between the wing and the sill to create a gap to allow mud and water to drain out.
Hope this helps, I have photos from mine if it helps.