Hi Noah,
Glad to. You've got a lot of good ideas and you're writing stuff that should get played.
Re: the bass, in high school it's generally go with what you've got. Professional groups will, of course, get exactly what you ask for. In the community band space, having a string bass is generally 50/50 between classical bass and no bass at all. Very few players will bring an electric bass into a community band unless the score asks for it (some pop arrangements do), and most are older and learned classical bass in the first place.