You can't factor the cost of tools into the repair. Torque wrenches are great to have when you're doing almost anything. Pretty much everything has a factory torque spec. I guarantee you'll use the torque wrench for some other repair/mod in the future.
01 TJ - 4.0L, NV3550, 2" Skyjacker budget boost, Xenon flat flares, LoD front bumper, Tuff Stuff rear bumper, RH4X4 sliders, 33" STT Pros on 15x8s