No, this was all smali/apktool-hacked on my laptop. I will be starting to look at things in a few days though. I need a little time to get the lay of the land, but I would be down for passing off some of the work if you are really interestedI would have posted this on xda but it won't let me till I have 10 non-dev posts.
Is there a git repo or something that you have tweaked in? I'd gladly try to help porting to 4.3 if you can point me to some code.