I have a Tough Dog 40mm-ish lift with upgraded TB`s which i enjoy with no issues, i also have superior engineering UCA`s and i find their products of a very good standard.
If i could go back and change anything i would probably only change to Rancho9000XL`s as they are adjustables.
Any more then that and you will probably find issues with your CV`s as they are not really designed for a bigger lift, especially if your off road quite a bit, if you really want more lift i personally would just add a bit of a body lift on top. I have not needed to extend my brakes lines either.