If you were driving when the hail hit, then your hood and the front 1/3 of the roof took the brunt of it. The hood based on the bracing on your Murano might need to be replaced completely, or could be reskinned-just depends on how many hail hits it took. The roof, at least the front of it probably has some dents as well. Those can be PDR'ed (paintless dent removal) out. Check the drip rails at the edge of the doors-those are the most expensive hail dents to repair because they're so tough to get at. And they're tough to pop out too-HSS (high strength steel) is used pretty extensively in the upper sides of the unibody structure.
You may have the occasional dent on the upper part of the fenders, but doubt there were any hits on the upper parts of the door panels or upper side of the quarter panels. The hatch is probably hail free as well.
Estimating hail damage is a part of my job; even up here I usually get one to two hail damaged cars a week. So, for the hood R&I time (removal and installation) figure one hour. Figure 3 hours to paint the hood (half hour prep time, 2 1/2 hours to respray it. Your yellow color is probably a 3 stage paint (primer, base coat, pearl coat, clearcoat) so it takes a bit more time to spray it.
If it's regular hail damage repair, in TX, I'd estimate 3.5 to 4 hours; less if the hood is flat, more if there are contours in it. More than likely they will just fill in the dents with filler and sand them down, then respray it. BEWARE of grind marks and fish eyes/solvent pop where filler is applied. Look it over with a magnifying glass once you get it back-paint shops bank on slipping shoddy work by unsuspecting and uneducated (about the body shop business) owners. If it ain't right tell them to fix it again.......You can buy a "hail light" to look at the damage on Ebay for 25 bucks or so. Very useful. If the hood is reskinned figure on 4 hours to reskin and reseal/weld the patch panel on.
The roof will take 3.5 hours to respray-3 hours for the paint, half hour prep time. Figure on 2-2 1/2 hours for regular hail repair. Again, if they use filler on the dents in the roof microscope the work for fisheyes solvent pop and grind marks. And overspray and tape lines around the sunroof opening .
Paint flaws are easy to hide in areas that are hard to reach; sloppy work is also done in these areas because people won't get up there to look. Don't be that man.
If they do PDR work on the roof, remember the headliner, BOTH side air bags and all the other stuff up under the headliner has to come out before PDR Can be done. If the hail hit a lot of cars, thethere's a good chance your insurance company has contracted with someone to PDR the damage. These guys could be great, or they could do really sloppy work (a bad PDR job can look as bad, or worse than the original hail damage itself). Research them out. PDR can be a cheaper alternative in some instances, but as I say, buyer beware.
Another thing to consider is dimunition of value to the vehicle-the vehicle repaired has lost some value. The hail damage might get listed on the Carfax for the vehicle. And prior repairs (even PDR and regular hail damage work) can ALWAYS be determined by a good inspector. ALWAYS. We live to seek out damages. Ask your insurer what they intend to do to the vehicles' dimunition of value; they may just cut you a check for the difference.
Hope all this helps.
