Chevy z71 lift for mudding?

i have no idea what i need to put on a 1998 Chevy z71 to go muddin. i want a big lift but it not be too much. across the back window im gettin writin that says "this aint my boyfriends truck." but anyways i dont just want it lifted i want big tires too. does anyone have any clue in how to help me?