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Model for concept purposes:
Model a 12" X 12" X 20' .375 wall (mild) steel tube.
Two 4" X 6" corner extensions will be welded (4 welds totaling 80') and run the full length of the tube.
These will be attached from any two corners (90 degrees apart).
These two extensions will each have a row of 13/16" holes running the full 20' length.
These holes will pass through both sides of each extension piece and will start and end 6" from either end.
They will be centered and have 6" spacing between holes.
Eventually, other parts may be included and led into a red painted photo realistic animation.