I'd also take it back to the repair shop first to see if they will do anything about it. If not you may want to see if they will at least give you a break on getting rid of that orange peel. Especially if you are not comfortable doing that yourself. It's not hard to do but if you've never done that kind of work before it can be intimidating taking sandpaper to your paint.
As far as your question about keeping a vehicle that's been in a wreck: Speaking firsthand, I wouldn't worry about it. That didn't look like too bad of a hit. Being that Jeeps are body on frame construction they can take more abuse in a collision than a unibody vehicle and still be ok. Even in a more serious collision frames can be repaired. I t-boned a kid that pulled in front of me 2 years ago and ended up having a brand new frame put under mine. body damage was fairly minimal. I had a couple issues when I first got it back but zero problems after. You should be just fine with it.
Edit: looking back at the front end pic that was a harder hit than I originally thought. Your hit looked similar to mine and my frame "diamoned" or in other words one side was pushed back about 3-4 inches further than the other. Yours actually looks like one side is pushed back similarly. But still, as long as the shop took the time to check and straighten the frame you should still be ok. There's a couple guys on here that are involved in theinsurance industry - hopefully one of them can chime in here as well.
. Take it back to the body shop that did the repairs's.
