if you have the storage arm rest on the drivers side nothing will really fit on the passenger.. now if you have the standard one you might be able to see if you can buy another one from the parts department, and put it on upside down on the passenger side there should be enough room for that..
the back seats i think would be rough, cause it would make folding the seats against the wall difficult. you can always add a removable cube shaped cushion between the back two seats which both people in the back could rest on, and it could be tosses aside when you need to flip the seats up.