After days of trial and error, I finally have found workarounds for most issues, including binpatched AICPM and patched kernel for lapic errors.
My machine is an HP Spectre XT ultrabook, running an Ivy Bridge i5-3317U and Intel HD 4000.
So far my install is based on unibeast and 10.8.2 app from App store, and have tried Chameleon r2064 as well as Chimera 1.11.1 as bootloaders.
I am unable to boot unless I use safe mode (-x), but there are no apparent errors or KP messages.
When not in safe mode, I stay stuck at the verbose output screen, the GUI does not start and I get no login screen.
I don't think this purely a HD 4000 graphics issue, as even when injecting incorrect device properties for the HD 4000, consequences are only felt when in safe mode.
I've attached two sets of system.logs: a failed boot in normal mode (nogui) and a successful boot in safe mode (safemode).
Any insight would be much appreciated.