Dirty flash your stock ROM - *appparently you can access KNOX even if your counter is 0x1 another user done so a month ago or so* - If that doesn't work. Then no-go, you'll have to forfeit your pics and learn a lesson in Note 3 issues. Don't root without knowing the consequences.
The people of XDA, including the Devs. Do not have to help you. We all choose to help. Everyone also starts somewhere.
City I live in makes and invented the Kitkat... I run Kitkat on my device. Aww how cute.