iMac 27" brilliance control Haswell

[oldkentroad]

My HAF XB Haswell 1092/GAZ87MXD3H (Tonymac86x based) works well with my Acer monitor but I intend using my late 2009 iMac 27" as display via Display Port since I can switch back to SL. Problem is I'm going blind as I can't adjust brilliance on the Mavs side.
Apple Forums seem to indicate Mavs dropped support for earlier displays (iMac 2009??) and going back to ML kexts fixes things.
I junked my copy of ML.

Is it possible to get someone to post Mountain Lion:

AppleBacklight.kext
AppleBacklightExpert.kext
AppleUSBDisplays.kext

Or is this naughty?

I'm going to try the SL kexts (when the room stops moving,) as maybe the display wants these?

Thanks.

Oops! Forgot I put ML on my USB video disk!! Have got them.

 

[beelzebozo]

Search for any combo updates to OS X Mountain Lion for those kexts. They should be packed inside.

If not, contact Apple to be able to download Mountain Lion.

 

[oldkentroad]

Search for any combo updates to OS X Mountain Lion for those kexts. They should be packed inside.

If not, contact Apple to be able to download Mountain Lion.

Thanks beelzebozo. Already had them on external FW drive. So far ML, Mavs, SL do not work.

UPDATE: Found a free App that works without .kext mods: https://itunes.apple.com/au/app/brightness-slider/id456624497?mt=12

Works well in Mavs.