used replacement parts, will work with both parts, I recommend using the Bours PTD902-2020K-A503: 

RK09L12B0A31 and or PTD902-2020K-A503

Audio receiver part, replacement of volume Potentiometer
Aiyima a07 Volume knob PCB.

Both those potentiometers will align perfectly, but the hole on the front panel needs to be enlarged a bit. You will need to find a new knob because the orginal know is not for the D shaft. I used these knobs: Aliexpress link

more info:

https://www.audiosciencereview.com/forum/index.php?threads/aiyima-a07-volume-potentiometer-replacement-logarithmic.32396/