Ask the insurance company for a copy of what they have your Jeep valued as, and then ask them about unseen damage...that is, damage that occurs down the road from premature wear on parts that were affected by the accident, but showed no signs of damage at the time of repair...which is what you're concerned about.
Also make sure, if they don't total it, that it's taken to a shop of YOUR choice. If it ends up not getting totaled, the insurance company may or may not write you the check, they may go ahead and pay the shop directly. Either way, when you go back to pick it up, go over it inch by inch, and insist to take it for a test drive before you accept the work done...even if they have to have one of their guys go with you on the test drive. Even though I trust the guys who did the work on mine, the 1st time around they missed the bent hub on the wheel. Fortunately, I had somebody following me at the time, who called me and told me before I got on the highway with it wobbling all over the place.
Accidents suck, i've gone down this road twice in the last year and a half, and there's nothing fun about them. The first time, I called my Jeep dealer and got the name of a good body shop that does a lot of work on Jeeps from them, and they ended up being the ones to repair it both times. So if you're confused as to who in your area does good work, give your local Jeep dealer a call and see who they'd recomend.
Also make sure that you get a fully insured rental, one that is comperable to your Jeep, at no cost to you what so ever, for however long the repair takes. In my case, the first accident, my Jeep sat at the body shop for exactly one month getting repaired, so the other persons insurance had to pay for a rental for a month, and the second time around it was only two weeks.
It's no picnic, but hang in there....it'll all work out in the end.