Dear BillE:
Hmmm. This seems pretty interesting. Of course Cary is the only one who would be an authority as to the build. I wonder about the two top corners fitting the raindrop design, but if you are taking out the sofas, that wouldn't be difficult. The 3 inch thickness would not be a problem. In terms of use, I can't think of why it wouldn't work. I think with that design, you could probably use it as a recliner to play cards on a rainy day, and obviously, it could go flat if you wanted that for travel.
If you decide to go with a Campinn, you will love it.
Lorie