so if I use a side mount to the corner piece it looks like the strut mounting brackets will be the same at each end with no need for a 90 degree bracket. That sound right?
Faux' pictures show that he also mounted the bottom bracket to the rear wall so it must work ok that way. I'd guess that piece of plywood is maybe 3/4 thick, hence you going "almost" through it with your 3/4 screws. A bit shorter screws would solve that problem, and almost certainly be plenty strong.
and thanks for sharing your experiences, RR. While the wooden prop is elegant in its simplicity, the hatch gets heavier as time marches on, and your perspective is from a whole other angle. Interesting that Craig & Cary's new teardrops, with undoubtedly much lighter materials, use galley hatch struts.