Since you can fit a 235/75/15 on a stock Tracker, a 2" body lift, or 2" coil spacer lift will be fine for what you're after. I know others are against body lifts, but if it's for street driving, and you're not buying a suspension kit, personally I would just do a 2" body lift, I wouldn't change the suspension with coil spacers.
Removing the grill is easy, there are 2 screws at either end by the fender, and inside the grill you will find 1 - 3 screws or clips(one top middle, and sometimes one in each bottom corner). Painting it is easy too, lightly sand with 400 paper, and spray.