Not sure how the
Scamp floor is attached to the shell (I believe it is taped and glassed so it doesn't leak). From reading the group, I believe the floor is screwed to the frame.
Unlike
Casita, the shell does not enclose the floor underneath it.
The 5W should be mostly the same as the S16, except for the front part, of course.
Inside the forward edge of the door frame is a vertical piece of about 1" square tubing to reinforce the opening. I believe this tubing is attached to both parts of the shell. The tubing is higher on the 5W.