Malcolm, thanks! I went back and reviewed your earlier posts and pictures on this thread concerning framing for the shell-off. They were very helpful!
Framing up next. So I stopped by H.D. and picked up a load of lumber yesterday afternoon. I still need to unsnap the front exterior skin from the metal plate that lies behind it and ties to the cross-member in between the A-frame. But with luck the framing and lift-off will take place this weekend. Now I'm beginning to see the reasons why you attached framing to the vertical members somewhere above the floor channel. In my case especially above the wheel-wheels where there is no floor-channel.