Good news! I was able to follow this thread http://forum.xda-developers.com/show....php?t=2538991 to install twrp and root. Although I get errors still "SuperSU has stopped". Not sure what I need to do to resolve SuperSU issues yet???
I was however able to get flash the modem using the file provide in this thread. I now have my baseband/IMEI restored, but I now have no wifi issue.
So can I install a new 4.4 rom such as [ROM] I747UCUFNE4_AT&T 4.4.2 Stock ROM & System Dump from thread
Will that resolve my wifi issues?
I am really appreciative of the assistance here!
What's the error you get trying to flash stock NE4? (Make sure it's a flashable zip).
You can now flash CM if that's what you wish (which you tried flashing before). It might fix your wifi issues if you're not able to flash stock.