Ok, here is an interim test: Check your PMs for the download link.
Code:
C:\>fastboot boot rec.img
What you are looking for: Device reboots, "Onyx" splash goes to all white screen, ADB @ 18d1/4ee7 goes "bong".
Code:
C:\>adb devices
C:\>adb shell
# id
# getenforce
# start ttyscreen
In the meantime, can you get the first couple of lines (those with "getprop") out of META-INF/com/google/android/updater-script out of your zip? Just post as plain text here, please.