I have a lot more to plan and decide upon but for now, this is what I envision for the environment. Note to self: turn as many things as you find suitable into a sci-fi theme. I don’t have in terms of environment right now.
Decision made so far:
Floor is old solid wooden flooring.
The platform below the rope and the stair steps will be anti slip metal.
The walls of the warehouse will be large concrete slabs.
Make my environment worthy of the name SCI-FI. Spaceship like?