You are right that it is definitely an ambitious topic. The first goal would not be to get 100 faders moving at once, but to start smaller. Many of the tutorials online that I have seen have examples of moving one or two faders at once. The problem arises when I want to scale the schematics that they used up to more pillars. I would not be buying 100 faders off the bat, but am more looking for products and schematics that can grow as the project does. But the complexity is a concern for my experience level.
Thank you for your thoughts on the project, and I will definitely look into what you brought up!