Upon inspection by Paul Cross of Indiana Interstate (warranty repair facility for DRV)and as confirmed by a DRV engineer, the problem with the floor is a serious issue. It is something that can be repaired however. I have complete confidence in Paul and his crew. He did some work for us last year on our 2005 Mobile Suite which we were very pleased with and he comes highly recommended. Paul told me that he has done a number of these types of repairs on a variety of brands of RVs with no problems. On Wednesday I learned that it was going to take longer than expected for the repairs. Possibly another week or more. So I decided to come home and make a return trip next month to pick it up. I drove straight through (825 miles), arriving home at 9 PM on Thursday.
I will post an update after the next trip.