Tammy, I'm assuming the floor plan between '79 and '81 is pretty much the same. In my '81, the table is a fixed mount/fold out unit. However, the port bert is only a single. IF the table was mounted on telescoping legs, it could be dropped down to berth height to still allow for conversion of the port berth into a double. Let me know if you'd like to come take a look at the table in my boat; it might give you ideas on which way to go for your set up. I'll be working on the boat most of the weekend at Finest Kind.