I've added the KiCAD files for this project.
On the little board, there are:
- Three triple-input AND gates (HC11) with pull-up resistors on all inputs
- Three triple-input OR gates (4075) with pull-down resistors on all inputs
- Six inverters with pull downs
- Four dual-input XOR gates (HC86) with pull-downs
- Four dual-input NAND gates (HC00) with pull-ups