No motors. Dr. Weitecamp doesn't want the thing to catch fire, or have motor heat stressing the wood and plastics. It's 52 years old. All of the lighting will be LEDs, for reasons like like power requirements, long life, and low heat.
They're going to build an exact replica of the original mechanism, including motors, lights, mirrors, domes, etc. They're going to test it like crazy, and exactly simulate the effect with LEDs. They will be comparing it to the original effect the whole time. Yes, they can replicate it with LEDs. How do you think big screen TVs work?