My 53 burb has one large pc. plywood floor. It's a GMC, but I'm putting a chevy grille and hood on. I just like them better.
Mine was a Colorado Forestry vehicle, so it has the 60/40 seat up front, but has a fold down bench on the drivers side wall, and a toolbox on the pass. side wall.
I'm taking those out to put a middle bench in for my kids.
Mine also has a strange air vent on the roof above the drivers/pass. seat.