I'm stuck at this puzzle. I already used all of my hints and can't get all the gear pieces and still make to where the gnome is hiding (the ??? point). Any help is appreciated, even direct solutions.

I'm stuck at this puzzle. I already used all of my hints and can't get all the gear pieces and still make to where the gnome is hiding (the ??? point). Any help is appreciated, even direct solutions.

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Included my sloppy solution here.