What issues are you running into on that unofficial? I am currently running his 4.2.2 version.
I was getting camera force close issues on certain apps using it, occasional force closes on group MMS threads, and the Mic for speech to text almost NEVER worked, had no audio in hangouts, skipping during bluetooth streaming, and no SIM card errors after using bluetooth.
I'm running the official build now and the camera hasn't closed, no MMS thread force closes, the mic is working flawlessly. Haven't tried hangouts or bluetooth streaming yet, and haven't gotten any SIM card errors. I'm using crpalmers kernel, and I am having some weird stuff going on with the light sensor.