Could I possibly get the size of the stomach for the purpose of item storage then? To me, swallow whole is better served as a way to guard your items/party then a way to deal with enemies. I wouldn't want to risk the possibility of being attacked by enemies inside me that require me to give up combat potential to deal with, especially because devour wouldn't make sense at that point, but would open up an interesting way to mess with your enemies.
Ex. Making an infinite loop of mouth tunnels inside your stomach that just lead back to the main part of your stomach.
Wait, why can't the ozodrin do this?