Jim, I'd be super pissed if I was in your situation. One of the main selling points of the boat (at least for you) was the amount of available storage.. Personally I wouldn't settle for a boat with less storage after the recall is done. You are in all reality getting a completely different boat back... Either they add the foam in the not so easy to get into spaces, without affecting the current storage, or they give you a complete refund...
Just my 2 cents, I hope you make out ok!