Root ALCATEL ONETOUCH Pixi 7 9006w

I got tmobiles free the ALCATEL ONETOUCH Pixi 7. I know thats its only 8gb but half of it is taken up buy the rom at the bloat ware and what evet. So , i want to root it so I can get the stock adroid on it. So it does not have all the extra stuff. It runs andoird 5.0.2

I also want to be able to still want to use 4g lte

Thank you for your time
~MattiWolf