So kextloading it will bring you nothing...
My fix kext must be used with hdaenabler/or dsdt injection and with original applehda.kext in place(/s/l/e)
If you want it to be on /Extra it must be on mkext format (Extensions.mkext)
I see that the dependencied are few.. like Audiodriver and pcifamily..
but in newer hda driver I see a plugin called mickey.. and in system it give many errors,,,
Just my 2 cents...
I will try to help you, if I can get some free time, but just to know the chance are very low, tried to help some friends of mine and failed.
Why? B/c is hard to do such many tests when you don't have that hardware under your fingers...
And BTW 3 weeks is just for warm...I spent more then 3 months on AD1988b patching and almost the same on ALC888 S/T from my lappie, so be prepaired if you want it done.
Funny! who edited my lappie kext?
Maybe you should ask that guy(Cnnn) to help you seems really good on what hes doing...what a lame!