Death wobble, tire cupping, driveline vibrations etc. etc. For a DD, don't buy a modified Jeep unless you know it really well (ie have driven 500+ miles in it) or are prepared to redo all of the modifications when you find out the ball joints are undersized, driveline angles are wrong, the 2 steering stabilizers are there to kill nasty kickback etc.
There are multiple threads on here that give a much better overview of the wk2 trailhawk than that, I'd look at those threads first.
Fwiw, I've had around 6 Jeeps, some modified, some not. I also have experience in a Wk2 trailhawk and a GC Overland that family members own, including towing and some light off roading. I currently have a JLUR and an '89 Grand Wagoneer. I went out and bought a JLUR because I wanted the most capable Jeep I could get that didn't need any modifications. It's my DD; I've added a winch and roof rack, those are the extent of my planned modifications (maybe 35's, but it doesn't need a lift for them). However, based on the OP's description, he doesn't need a Rubicon, let alone other modifications. He needs a decent GC or stock Wrangler with a decent set of tires. Stick to a modern Wrangler with BLD or a GC with QT-2 and it'll be fine in almost anything. The trailhawk upgrades to QD-2 and air suspension, it will (in my limited experience) outwheel a stock base JK or TJ and be about even with one that has a Limited slip in the rear. A Rubicon or a JK/TJ with some mud terrains will be a different story, though. JL is out of the budget.
Don't get a modified one for a DD unless you like punishing yourself. If you do mostly on road and light off-roading, I'd look at a JK Sahara. They're kind of the best of both worlds with room to make modifications if you get into heavier off-roading but decent on-road manners and comfort (though not as nice as a GC). Having had both, I like the 4 door better than the 2 doors. They have the room to sleep in them, the 2 doors don't.