That looks like a complicated Lego project!
Reminded me of the one and only Technic Lego object I played around with when I was young, must be the end of the 70s or early 80s, not sure anymore. A big skelter... hmm, maybe not big, but felt big because I was small back then :) Didn't have an engine by the Lego team, so I used an engine from m y train set to drive the skelter like remote control, though it was with a remote control attached with wires to the engine. I even connected some light that I could switch on/off as well. I think also some stuff I got from my train set, not sure anymore.
Being able to share with a little one. Why not befriend one or more of the little ones in your area and share your Lego enthusiasm with them, like if they were your children?