I installed a Hidden Hitch 2" receiver on my '99. From a web vendor it was less than $150, shipped, including wiring and a drawbar insert. It attached with (6) bolts that were easily threaded through the box frame using the leaders included in the hitch box. The wiring consisted of disconnecting a plug in the wheel well, inserting a "y", and reconnecting.
I *think* the vendor was Hitches4Less.com.
The whole deal took us less than an hour, and that included sips of our beers. A second person is very handy to help hold the hitch in place while the first two bolts go through.
I've put the same brand hitches on (2) Subaru Outbacks, a Caravan, a Nissan truck, and on the front of my TJ. All were equally brainless installations. For peace of mind, I towed something a short distance and rechecked the bolts.
Barry