Looks like you made quite a few purchases for a gift... very generous. Sounds like you bought the linear gear for this project. Is it and/or do you plan to make it more height adjustable (outside the router plunge capacity?... if that's what you are depending on).
I'd be interested on where you bought the linear gear (local???) and how much? Most sites I found didn't quote prices. I'm not mechanical enough to search by name... I depend on visual pictures.
Details/build of that leveling setup could be a good subject for a blog.
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