Thankfully, it's just "stuff".
Be sure to document the amount of time you spend on drying, cleaning, etc. A local train club had to clean up after vandals broke in and sprayed fire extinguishers on everything. The club kept track of how much time the members spent cleaning cars, engines, buildings, and scenery; the insurance company paid them for their efforts because it saved them from hiring professional cleaners. YMMV, of course.
Wishing you the best during this difficult process.
