Question [Q] Rooting 4.3 - MVLUEMK6

Hey fellow XDA members, I have been searching for a way to
root and install a custom recovery on my I337M, but am slightly
confused about this phone, and I don't wanna screw it up.

First off I am on 4.3 - MVLUEMK6. I also have the Knox app.
Am I able to Root using a certain method? I tried Saferoot, but that was a
no go. I have also heard through my searches of "Kingo", which
I'm hoping to try, given it won't turn this S4 into a brick.

Also in the CF-Auto Root Thread, it states near the Downloads,
that AT&T users shouldn't use it, and go figure I'm on Telus. So also a no go..

Can this darn thing be rooted?!?