Well, I just received my 3D-printed grille, all the way from Belgium! It's been about a month, and it finally arrived.
Buried underneath a bunch of packing peanuts, was....

My grille...
Well, it looks great, but it is about 1/6 the size it should be. I went back, and it measured in at a whopping 37mm...
I'm emailing their team about some slight design errors, and hopefully they will send me a new one!
Until then, I guess...