We are thinking of buying a used 2010 Laredo 266RL. Question - the side walls exterior feel strong and laminated but the rear wall can be pushed in as if it has air in between. We have had it checked for leaks but there is no evidence of water inside or out. Does anyone know about the construction. One person told us it was a "hung wall". Also, we like the layout but there is no cutlery drawer? Seems odd. Any feedback would be appreciated.