I have a working 105+ year old player. Designing a non-destructive way to convert it to be MIDI-controlled and still retain the original function. :)

For your build versus buy decision, https://www.qrsmusic.com/PNOScan.php

Love that this company is still around. I've seen some of their rolls in the wild but assumed they were long gone!

Sweet! Do you have anything written up yet?