Since you mention this, I'll ask....would a 20-something female fit in
at all? I've been thinking about it, and really am not afraid of being
the only woman (I work in the industry, and rarely see women) but I
always got a feeling it was an old boys club. True?

You probably will need to be a little bit thick skined, there are not a
lot of women but there are some and they do well.