Default Minix Neo X7 root help

i'm searching a simple and secure method for rooting my new Neo X7...
if possibile i prefer not using custom firmware, because i only need to have Superuser permission for ONE application, that is Orbot. I need this because Orbot can force every app on the phone to connect via Tor network ONLY if it has Superuser permission (without it can only use some browser to connect via Tor network).

i saw that some rooting method stopped working after 007 upgrade...
i'm not an expert with android rooting and modding, but i have some back experience from the time when i had the Nexus One... Today i have a Note II and i've used Framaroot to gain Superuser.

Searching the web for the Neo X7 rooting method i've found someone that uses Kingo, but later i've found that is a malicious program...
Now i'm wondering if can i use Framaroot or simple program like UnlockRoot, or there are other simple way for rootin the Neo X7?

thanks in advance