Thank you for this awesome tutorial.I have the same laptop,altough I have a couple of questions regarding compatibility.
Does the external vga input work?(I mainly use my laptop with an external monitor for work).
Is there any chance that there will be a solution to the original(Atheros AR9485) wifi card work?
I have another question regarding the installation:
Do I have to format my entire hard drive when installing osx or it's enough to have a single partition formatted?