Heh, I was just thinking, it feels like I've spent my entire adult life staring at those Quake2 panel / metal textures, in one game / mod or another.
Hydra, it'd increase the likelihood of people testing by an order of magnitude if you ensured all textures are included, and have the courtesy to vis it before release - otherwise no one can give any useful feedback on r-speeds, and you won't have any data to drive vis-hint brush placement. That said, the lack of curves and modest scale means you might get away with (almost) no hint brushes.