Nothing will stand up to water soaked insulation in the underbelly bathtub.... We ended up replacing the front 6 ft of our marine grade ply floor (basically the entire bathroom), and the entire front wall of our 5 year old DF Toyhauler back in 2010.... At the time I was lead to believe they were one of the best built toy haulers on the market, and the price reflected that... The repairs turned out well, and better than factory, but some of the poor workmanship from the factory was extremely disappointing to say the least.
