The set design is quite amazing. Great job!
I'm planning to DIY one for myself.
Here is what I have in mind:
1 Plywood Wire/Cable Reel with Fiber Drum
1 Lazy Susan Bearing 5/16 Thick Turntable Bearings
1 Tamiya 72008 4-Speed Worm Gearbox H.E.
PVC Pipe or Metal Tubing
This rig is ridiculously way over priced.