This rack case feels sturdy, and the S32 fits like a glove (the rear of the case is almost flush with the rear of the case. There is a handy net inside one of the lids, which allows you to take some small items (power cord, bag of spare screws, sandwich).
Granted, the metal parts look and feel a bit cheap, but they are probably sturdy enough for their purpose.
If you're looking for a small case that will keep your S32 protected, but you don't want to buy a case of similar price as the product itself, I think you've found it.