The repair shop got truck torn down this morning and thankfully there was no hidden damage. They are replacing the rear bumper, left bumperette & bracket, left mudflap, the black bumper capper, repairing and respraying the hatch and they even included time to paint my emblems black again. (The Toyota black pearl emblems are no longer available from Toyota.)
Even with these "wimpy" bumpers, the truck took a hell of a beating and came out with very little damage.