Ok so I've decided it's well worth the $7 price difference to get the prewired Nano v3 as my soldering skills have sat on a shelf for 20+ years. Basically, I playing the safe game with the soundboard.

My question, as anyone ever modded the Nano Chassis discs to fit the board with the DIN connector on it? Is this feasible?

Thinking maybe widen on disc enough to allow the SD card slot to pass and slide it up to the DIN connector and then use the other disc as normal. But this will likely leave a loose hold on the DIN connector side.

Otherwise I suppose I'll try to design a custom holder for the board.