I have a 89 townace with the rotating double bench in the middle. I want to get an extra seat into the middle row and remove the back seats for cargo. I'm having a hard time tracking down one of the little single folding seats that goes next to the double bench. Does anyone know if a rear bench will fit into the middle?

Or does anyone have another suggestion for more seating?

Its a 1989 townace 4x4 diesel rhd imported from Japan.