Re Image 8, I'm durned if I can remember what it was called but the stuff on the roof was tar impregnated felt or similar to rain proof the slab roof. You can see how it has been folded over the edges and stuck down.
Nice to see an intact site. Like you I have driven past it many times but knowing it was there and not able to detour (Danger - wife in car!).
Now you have shown us. Thanks.
I see that you have shown it with North to the bottom of the image to deceive the enemy! (Just to the right of Sutton Weaver PNK)