0.2mm layer height, 3 walls
Used silver PLA, 200°C hot end, 60°C bed temp.
I printed the pins a few times (they were too big, and/or too rigid). This worked: print at 85% scale, 1 wall, no infill.
To assemble this, I used the designer's picture as a reference (the green & white print). I added a sketch that points to where the pieces go. Maybe this will help someone? :)