Just to pick on ya 5th Conspiracy, I found it's better to build the sets bigger than planned cuz it allows ya to move the camera easier. I've built sets too small and you end up being able to see over the top of the walls. That wasn't so good. That's when I learned I needed to manipulate the fotos more, like a tunnel or a remotely thin corridor.

I did start building this. Finally got some $$$, bought 3 sheets of 1/8" foamboard and... Let's see, I cut the 1st 2 walls, the courtyard walls. Measured 'em against a 25A Beach Head, should look ok. They are 24"x10". Hmmmmmm, I wonder if I should do a step-by-step on this bad boy... course, if it goes all wrong, well... LOL!