there is double sided tape in a few places behind the cladding. I think you need to start fom the front bumper and work your way back, i know i can get the front bumper off in about 5 minutes and remember that the rear bumper was a PITA because 4 of the bolts were hidden behind the quarter panels

iirc there are also rivets holding the cladding in the rear fender wells, not sure what you do about those