Reply to Midi Fighter with only Potentiometers

Been a lurker for a while, just curious if this has been done...

I really want a midi fighter with only potentiometers or high resolution encoders. I want it to be packaged like a midi fighter. Very similar to a livid ohm code.

Now, I started playing around with my arduino and was going to hack together a shield and mount it in a midi fighter case with a custom machined top face. I then started believeing, can I use the existing midi fighter board?

I dont know what the inputs are (guessing digital) and I didnt know if the LEDs supported PWM or not. I am curious though if I can reprogram the darn thing to accept whatever inputs I need. I mean this thing has a similar processor to an arduino right? At the very least I could hack together a batchPCB board that is a clone of the MF, but is in arduino from a code perspective. It just would be so much easier if I could use a midi fighter board from scratch.

I am a mechanical engineer my trade, but I wanna start diving into this a bit more, any direction would be awesome!