Well, with 2020 behind us and dealing with the C-19 stuffola, I continued in my quest to make a comfortable dinette in the slide to replace the clumsy jackknife sofa and heavy fold-up portable table.
Again, my quest was to not modify, drill or cut into the trailer slide, and save all of the removed items if someone [or we] ever want to return the trailer to stock condition.
So, the earlier 26" homemade seats and cushions were removed [the orange set shown], I ordered a set of RecPro Charles 36" seat cushions and reconfigured bases for the new upholstery [2nd photo].
The result is a comfortable three foot wide seating area [again, not necessarily enough room for a four person eating area, but certainly very roomy for the two of us [wife and 100# doggie]. No, doggie eats on the floor. So now we can enjoy the added table space, open the blinds to view the early sunshine and early birds.
Additionally there is plenty of storage space under tge seats for bulky but lightweight items.
I figure the total increase in weight on the slide is probably under 30# [versus the sofa and table]. The seats, table stanchions and all are mounted only to the false floor which also locks the assembly into the sofa mounting system which was not disturbed. Also the loss of space in the living area due to the increased slide depth is also a non-issue [doggie has plenty of room!].
Time to go boondocking!!