Looks like everything is there...
Not sure about your graphics card though. Could be you need MacPro3,1 for it (you will probably have to remove AppleTyMCEDriver.kext in that case). Not sure about GraphicsEnabler=Yes for your video card either. And did you disable HD3000 in BIOS? You installed patched AppleIntelPowerManagement with Multibeast for Lion?
Also, did you try without graphics card yet? You would need IGPU patch in DSDT in that case....
Edit: You could also try installing NullCPUPowerManagement.kext just to isolate power management from other issues. Just put it in /Extra/Extensions (you may have to make the Extensions directory), then boot with "-f"