Default [Q] ATT and T-MOBILE

That might be a weird (don't want to use word "stupid") question. I have rooted, unlocked ATT branded Flex, running currently on T-Mo network.
Questions;
1. Is there a way i can somehow port T-Mo stock Rom into it?
2. How do i get rid of the ATT bloat on my Flex?? I was trying BloatFree app, but with it i was not able even see installed ATT apps..

Anything will be appreciated.
LG G Flex
Galaxy Note 3 - its history now!
Some other crapp.....