Hey jssa, I've updated the Evervolv overlay to 4.4.2 and I think the Evervolv guys have a lot of important things working and I've done a bit of work on its ramdisk. It's all on GitHub so you're welcome to study and use anything in there or the kernel source.
Everything works except the camera, Bluetooth, and apparently 3G, but I think the latter two are trivial things. The fromer is due to a move to ION and might take some work.
I'm not interested in spending too much time on this phone, but I'd be pretty glad if anything I do helps out.
Also, I know you've probably been doing this sort of thing longer than me, but if there's anything I've learned in the past couple if years, it's that it can be pretty dangerous to tease things. Projects can get interrupted and people tend to get a little impatient.