12m x12m soft curved video wall

I've recently had a meeting with a large club
They have ordered a 12m x12m video wall and want me to create content for them. Wall has a soft curve. They intend to expand wall if all goes well and cover the roof.

Has anyone experience with these walls?
Anything i should know apart from the obvious?

http://highleds.com/video_panel.html

12x12m screen is 384x384 pixels - ie quite low resolution.

bold chunky things will look better than thin lines and intricate patterns.

what is controlling the screen / playing back the media?

What are the things required to make a large video wall?
video wall