Floor repair / Replacment?

[FunInOK]

My wife and I just purchased our first pop-up - 1995 Rockwood Premier 1901.  We found two soft spots in the floor under the storage areas.  The remainder of the floor is in great condition.  It appears that something had sat in those two locations and leaked for quite some time.  I would like to repair this and would consider replacing the entire floor if it is feasible to do.  Anyone have experience doing this?  It seems that the entire box would have to come off the frame.  Is this true?  If only the cabinets need to be taken out and the linoleum taken up, then that isn't such a bad thing.  Any advice and lessons learned would be great!  Thanks.

[mike4947]

Since I had a trailer that had to go back to the factory I can say the box would have to come off. The flooring is put on the frame and the box is built on top of it.