Being that you got them from the G-Boy custom PCBs thread, I would say so. You'll need his custom STLS though, the G-Boy won't close if you use the original STLs.
Edit: I see that you also have a couple more threads up about your G-Boy build (one for the trim, one for the screen, this one for the PCBs...), it would probably make things more concise if you make one thread for the whole build, rather than one for every question.