If you want the same feature as Note 3, our N7105 currently don't have (as in ROM originally made for N7105).
But you can try SkyNote from AT&T forum, search & read first before you flash, make sure you understand how it works to flash this ROM onto your device N7105.
If you don't care about the feature from Note 3, you can use some of the AOSP ROM, which is now I think the most ROM developed for N7105 (CM based).
If you just want to update to 4.3, with KNOX-free, you can use LIONrom. This is for our N7105, but it is purely stock, modded KNOX (knox free), rooted, deodexed. So far I use this one, I never face any problem as stated by other user.
All your choice mate.
Sent from the corner of this rounded earth.
Galaxy Note 2 N7105 LTE (Rooted)
ROM / Kernel : DittoNote3 v.3.2 / AGNi PSN purestock v3.9.3
Thanks to : E-team (ROM) / psndna88 (Kernel)
Additional : 240dpi Mod / Thanks to : mannyvinny
Galaxy Note 3 SM-N9005 LTE
ROM : Stock ROM/Kernel
"Hit 'Thanks', if I have given any help for you in my post(s)