It might be too wide, but on older I.H.s Travelalls, there was a fold down center seat, that doubled as a armrest, and the bottom flipped up into a storage area, grat place to hide a amp, or a six pack. I have two of them hidden in one of my trucks out in a friends yard. I was gonna throw them in the back of my mini with some seat belts and they would make fine rear seats, but I bobbed the bed and there's no room (not to mention my friends drink up all the ales) if your interested ? I'll grab the measurements next time I'm up that way, they are pretty cool.
