Hi Steven!
Welp, the Darling Bride ordered her customized Moto X today, we'll send the son her S3 in exchange for his Gnex... on which I'll install KitKat and sell it. Sounds like a plan!
Have a great night!
Pics of said device or we'll just think you're trying to cool guy us.

I'm going to try very hard to hold on to this phone and get rid of the extra lines on my account that I have been using for upgrades.
Didn't panic...back to Google. Search revealed the bootloader for build JWR66Y wouldn't properly load but the JWR66V from the previous version would and was compatible. So I downloaded that, flashed through fastboot. Flashed the 4.3 stock image. Everything booted up perfect! 