By request, here is a quick glance at the cushions underneath my dining-table-bed. I was lucky that they all came with the boat. At first they all belonged in other places. The largest rectangle and smallest rectangle pieces were previously buttoned against the starboard side wall in the rear berth. The long-narrow piece was hanging on the port wall in the rear berth just under the stairs. I forget how I figured out the puzzle, it may have even been from looking at an old boat manual, and the cushions appeared to have very little use to them so they are good and firm. I’m not sure if Catalina had always done this with the dual-purpose fitting cushions or if they began doing it mid-80s. I don’t think any of the C30’s I looked at with my friend a few months ago had complete sets, but they were all older.
Hope that helps!