Reply to Modded Mixer

Greetings all. I have a Numark X9 mixer and recently install a SL1 serato interface box inside and it works great. However my brain is constantly turning and now I'm wondering if it is possible to wire my line-faders and cross-fader to an HID/MIDI pcb board. More so the cross-fader because its a Numark D-type rail fader.
Has anyone attempted or have done this?

Thanx.