>"However, the wires that are coming out of the Q-filter box-drawing aren't labeled (black/white), could anyone tell me which one's which?"

There's a simple answer: It doesn't matter. The Q-filter is just used as an inductor, so there's no directionality in it. Much like a resistor or a cap.

Good luck!
Let the thunder roll and the lightning flash, I'm doing alright for country trash.