I'm curious about this as well. I have a 2004 that has some floor damage. Our main damage was caused from a failed seal into the storage compartment and as water dripped down the side of the unit from meltoff or rain, it traveled into the unit. We have damage at both ends from this. We keep the camper tipped so nothing pools on the roof, and the water entering the storage department traveled down the unit to the other side. So we have soft wood on both ends
I talked to a dealer last year and he said that in the hybrids, you basically have to replace the entire floor and that you can't do it in pieces. If anybody has information or instructions to the contrary, I'd be might interested to hear ideas.