Here is a picture of the current floor plan and what we are planning to demo.
Currently we have a small master bath that connects to the guest bath, which I always thought was very strange, but it has worked out well while we are living in it. I have taken the guest bath and Jami has the "master bath." A long skinny closet runs along the back wall of the master bath, which holds most of Jami's clothes. At the end of that closet is another closet/storage space that you access from the guest bedroom. This will stay intact. Adjacent to the master bath is a large master bedroom, followed by what was previously used as a study. Part way into the bedroom you can see a dotted line denoting the beginning of a previous addition. Everything in the original house is pier and beam, while the addition is on a slab foundation. Most of my clothes are in the closets in the study. The rest of the space is being used for storage of things not needed now. There is an exterior door in the study leading into the backyard.
As you can see, the plan is to essentially demolish everything down to the studs and create on long box, while keeping the storage space coming in from the guest room.
So hopefully that gives you an essence of what we have to start with.