Ok looks like I won't need the screen casing (that saves me £20), it's got no cracks or damage to it.
I got the screen off quite easily:
step one: remove the two screws by the screen hinges, then prise the front panel off, it will simply clip out.
Step Two: remove the two upper screws holding the screen cradle to the back panel.
Step Three: Pull the back panel away from the screen cradle, close the lid most of the way and you should be able to just pull it apart, then remove the cradle screws.
Step Four: remove the screen cable from the back, followed by the lower cable. Done.
6 tiny screws hold the screen in its cradle
2 larger ones hold the cradle to the back plate
2 (Same size) hold the front panel on.