I have some PCBs for a PS2 to Apple II/II+ interface based on this sites design https://knzl.at/ps2-keyboard-for-apple-ii/
There is a minor issue. As these were first effort boards, the PS2 componenet mounting is backwards. They are also untested.
The PS2 port is facing the socket locations. It should be facing outward. That being said, it would be easy to jumper it from the socket to a panel mount or similar.
If you would like one, drop me a PM. I only have 3 boards available.
No components are included and you need to download the source code for the PIC16F630 and upload it to the microcontroller.