Just in time for Kitkat to be released and it's a whole different ballgame....
If you do upgrade, I found it easiest to Flash Kitkat with PC ODIN, let it boot. (If you have a bootloop or screen hangs, reflash stock JB rom on without root as the KK bootloader hasn't been flashed).
Flash the cf-Autoroot for the SM-P905 (you'll need to do a search) - let boot..Go to phone and enter *#2263# and update the wacom drivers. It may take a little while to access the menu.
Flash this tar for normal P605 recovery -
http://xdaforums.com/attachment.php?attachmentid=2776284&d=1401701658
Flash Twrp 2.7.0.1 found at post #772 on this thread -
http://xdaforums.com/showthread.php?t=2515656&page=78
You now have a rooted Note 10.1 2014 on Kitkat with TWRP recovery. (if your sd card ios formatted exFAT you won't be able to save the backups to the external sd card but Fat32 seems to work).
This was how I did it, whether you need to use the P905 autoroot is needed or not is up to you, you might be able to cut out a heap by just flashing TWRP 2.7.0.1 and allowing it to insert root, didn't work for me but I had already rooted with P905 root..
Happy flashing...