The cracks in the bumper have to be ground out, filled, sanded, primed etc.. 1/4 panel is going to be a *****, they'll use weld on rivets for the slide hammer etc. pop em out.. filler complete door has to be prepped & repainted, along with blending into the front door, rear 1/4 & part of the roof pillar depending off off the new paint shade is compared to the OEM (weathering, fading etc..) Body shops operate anywhere from $40 an hour to $100+ an hour, plus materials.. it adds up fast.