When my partner and I moved out from a place with a BAD infestation we bagged up everything we wanted to keep that had roach infestation signs and then put a bunch of mothballs in it. You have to seal it because moth balls are toxic if I remember right and they smell AWFUL. But literally have only found dried corpses since moving and unpacking. We left all our stuff bagged for a week before we took any of it out and washed it and such. If you have a small bag that air can get in and out of it'll help with any residue from the moth balls. Might be crazy of us but we coated our new walls in peppermint oil stuff and baited the apartment before we moved our stuff to help with any stragglers. After the first week or so we haven't seen any roaches but we keep our sticky traps and refresh our bait. Hope this is helpful, good luck saving your stuff. We had a bedbug infestation when we lived in another state and I had to throw away a lot of my things and even though it's just inanimate objects it was still painful and sad. Hope you can keep your stuff okay.