All is not completely lost... really! Worst case scenario, the camper is destroyed or completely gone. Here's an opportunity to start fresh all over again with a new camper when insurance settles. Actually, kind of exciting when you think about it!
There again, your camper may have missed everything too. Keep a positive attitude and look for the best, no matter what the situation!
(My neighbor at home keeps telling me he wishes a tornado would take the roof off his house so insurance would pay for a new roof! Now THATs positive thinking!)