Am going with the military bag solution but going for something a little bigger than the bags I had planned to use to provide some more overlap and try (no doubt pointlessly) to keep out the feche-feche. Am going to put a thin aluminium support on the inside with a 90degree bend and a base plate for the bottom of the bag. Then I'm planning on fashioning the hooks for 1in sq rods of nylon.

We'll see!

Jules