The last circuit you posted will work perfectly. Now just provide the diode gating inside the box.
Here's a link to help the original poster. It describes the 4017 and other chips and what you can connect together.
4000 series CMOS Logic ICs
Here's a link to help the original poster. It describes the 4017 and other chips and what you can connect together.
4000 series CMOS Logic ICs
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