Scott,
A girl setter like you describe is a precious jewel...I have one very similar. You are a lucky man.
Richard Wolter's book on pointing dog training is old but still very relevant. A short and simple read covering the basics.
Don't get too hung up on whether or not she will tolerate gunfire. In a well-bred dog, the strong desire to hunt will outweigh the unpleasantness of the loud noise if birds are involved. My Scarlet hated gunfire the first time she heard it, 15 minutes later a ruffed grouse caught her nose, was shot over her, and she retrieved it. No stopping her after that!
Good luck!
