Okay, I've installed GraphicsUpdate (and got a system freeze neary instantly after setup).
Rebooted in single mode, applied replace.sh, patcher cpuid.txt and patchr graphics-cpuid.txt (you seem to miss that, but this is the one cpuid that patches OpenGL).
Rebooted just to see kernel panic (GeForce.kext/NVDAResman.kext)
Rebooted in single mode, restored my Gf* and NV* stuff (from Rev2).
Rebooted, fixed IDs in NVDAHAL40, NVDAResman, GeForce and NVinject (noticed the side-effect of replace.sh - completely dead BT mouse).
Rebooted to see OSX in the state I've started from (not counting dead mouse, *sniff*).

Other ideas?