Hi
Ive done a few
Theres a video floating about on it
I think its on Utube
1 thing be careful with the mic and wifi wires
They are very delicate and easily broken
Also does it switch on still cos the ribbon on top screen
needs to have soldering done if changed
With care its not too bad!! I found it easier to get a nice sheet of a4 paper and every set of screws i removed drew a circle round then saying -"back cover" - "main board" etc!!
If you take your time and pay attention to how it comes apart (especially the hinge) you should be ok!!