Sir,
I really thank you for providing this oppurtunity.
I can assist you to root your device and make it to run the latest CM11 4.4 kitkat. Having a good experience in rooting the Android devices especially the ones like Galaxy S4, S3, HTC one, Xperia Z etc., Don't worry that I'm a new freelancer, it's just because of my less account activity( BTW I've created account long back). But now I'm available frequently.
The rooting process doesn't take much time. Even I'm always available on skype. So consider the job done.
If you are interested then please PM me and let's start discussion. I can assure that nothing goes wrong.
Thank you
Waiting for your positive response