Here is an update, many images but they are small in size.
Images, click to expand.
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I tested with a water wheel, but it didnt fit very nice. Made the orange (copper?) wheel with chains instead.
Hopefully that is possible.
What do you think? Is anything important missing? Ideas for enhancing the steam punk look?
Obviously I expect many tweaks, because chisels and I have not really taken in consideration room layout for the inside. But you know, you get the general vision.
Edit/ I guess we can make it taller if needed. About 7-8 plots high depending on where you measure from.