"This my sound a little strange but I highly recommend you make a cardboard model of your camper rear wings of the camper and everything, just use duck tape or hot glue gun to hold it all together, cut out the sections of the bottom that Bigfoot cut out. This will show you how flimsy the rear wings and overhang are, then with glue or tape reinstall the bottom that was cut out. You will quickly understand what's going on structurally with your camper."
^^I'm not following the above. What do you do with the cardboard after you make the model? Did you cut out plywood to replace the plastic inspection cover, or cover the entire bottom with plywood?