It's true that some spoke engines are the same, but that one is not. It has a 2 piece water hopper (it's 2 pieces on the real engine, it only looks like 2 on the model), and a throttling governor. Somewhere I've seen a model of a hit & miss version, but I don't know who makes that kit. I don't think a fully machined flywheel would look exactly right either. I'd probably just stick with the spokes rather than make one that isn't correct anyway. Thanks for the link.