All of these are for an Xperia device, which means that a significant amount of modifications would have to be done. Would be much easier to use a CM base meant for an unlocked bootloader, and then port it to locked, modeling it after markolino's CM9 locked BL base. But that's just my 2 cents.
Take a moment to read this.
Romans 1:22 ~ Professing to be wise, they in turn became fools.
Humility is not thinking less of yourself, it is thinking of yourself less.
A glad member of the Anti-Apple regime ^-^