Staircase/Fabric sculpture by Do-Ho Suh (April Fabric and wire will be cheaper to construct, and would still allow you to look through the installation into the space
These moves from fitness star Cassey Ho will save you.
Do Ho Suh Corridor and Staircases (Kanazawa version), 2012 Polyester fabric, metal armature - The Highlights Of Art Basel in Hong Kong
Robe of Dead Soldiers: Artist Do-Ho Suh. Made of dog-tags.