1972 Brave rear twin bed layout

[AOBrodie]

I have a 72 Brave with the rear twin bed and center, fold-out dinette table layout. I have a couple of questions.
On the table itself, how long is it supposed to be with all the leaves installed? I have two leaves, but it seems like there should be three.
On the bed layout, is it supposed to optionally convert to one big bed, with a panel placed between the two bed/seating areas?
There are wooden slats that look like they would support a panel to do that. If so, where did they intend the panel be stored?
Also, Mine is titled as a 72, and has the straight frond-end molding style, but the floorplan i have is not shown in the 72 brochure but is shown in the
73 brochure as a D20T (I suppose Twin bed). See pics. Thanks