Flood Damage Query

I suspect that you might get the 5er dried out just fine if the flood only reached the storage area though it will take quite a bit of work. A couple days of leaving everything open along with a good mopping may be all that is needed though I suspect that any belly covering will need to be removed and whatever fiberglass batting insulation is there be replaced and any ducting checked and drained - and the sooner the better. I wouldn't try to operate any slides until the motors and wiring have had a chance to dry out if they were inundated. The van - if water got into the electronics, it may be beyond economic repair. If the flood just wet things down at the floorboard level, maybe it can be dried and returned to service. All the above - I repeat, the soonest you can get at it to prevent rot, rust and mold.