Possible Dry Rot Problem

[prowler27]

We discovered a possible major problem with a 2001 Fleetwood Prowler LS 27 ft fifth wheel that we are purchasing. We think the roof leaked at the seam where the rubber roof meets the fiberglass body toward the front. We have soft spots in the wall and ceiling in the bedroom area which is the area that rides over the truck.
1) Would water damage to this area cause a structural problem?
2) Can it be fixed?
3) Has this significantly reduced the value or made the 5th wheel almost unusable?
4) should I be worried about mold?
We took it on two short road trips without problem and are getting ready to take it on a 2 month, 4,000 mile plus road trip... very bummed in Penryn. Any help would be greatly appreciated. :( [/b]