In practice, well, it's the same thing.
First of all, a BIG thanks to K52JR hackintosh project guys http://code.google.c...2jr-hackintosh/ who helped me to install an original Mountain Lion on my Asus K52JU laptop, which is the same model, except an U insted of a R and a HD 6370M instead a HD 5470.
Basically you have just to add 0x68E41002 to PCIMatch in your vanilla AMDRadeonAccelerator.kext (beware, search first for "Cedar" cards section) and ATI5000Controller.kext.
Then you must use an exact display override by finding your screen EDID (if you own a K52JU like me, you can use my override in attachments to avoid the hassle)
and restart the PC with GraphicsEnabler=Yes and AtiConfig=Hoolock. First time the screen will show scrambled, so plug a VGA screen in your laptop and select a proper resolution. You are done.
If you never did some kext patching, EDID editing and similar stuff, first read this
If you cant find a proper resolution, first install SwithchResX and create a custom resolution and refresh rate for your screen while you are under GraphicsEnabler=No.
I advise you to use the -v option every time you boot.