Nikki, here are some pictures. FIrst the floor space I refused to give back up. I had the box under Stuart's crate made to fit over the heater vent and to fit his size crate. As you can see I use it as a side table. I had an office chair in the open space between but have found the good camp chair just as comfortable. The small table folds up and gets fastened to the side of Stuart's crate for travel mode.
Remi's spot is to the left of the chair with another wire basket that safely holds the laptop and iPad as we ride along. If the rig turns over I might lose them, but the computers will be the least of my worries at that time.
Here is a shot of the open floor left between the "daybed" platform that replaced my couch and the crates and chair. The black ottoman is useful to rest feet, hold cards and Mexican Train games, etc. and as a jumping up platform for small dogs.
The space with the crates and the chair is available to be re-purposed at any time or for any need. All I need to do is remove the chair and crates. I have friends that lined the wall of their BT Gulfstream with dog crates and created an additional sleeping space across the top of the crates. I have traveled with more crates and have had them stacked when necessary.
Now on for the picture of the shower head. The silver switch at the base of the shower head is an additional part that can be picked up at camping world or online. It allows me to easily and quickly turn the water flow off and on.
The expandable curtain rod is what it sounds like - it expands the space within the stall. My elbows fit much better now. In theory and with some shower stalls you are support to be able to work the joints/angles to have the whole thing go inside the stall for travel. My stall is just a wee bit to narrow to allow me to move it back, but once the curtain dries I flip it up and out of the way so where the show rail is doesn't bother me.
Hope the pictures help.