It takes a team effort to pull off large public speaking efforts. There are people who set up the stage, audio/visual people, the people who adjust the lighting and the room temperature, and so on. They are all part of your team and will be vital to a successful presentation. They can help you to get everything just right. Be sure to treat them like the valued business partners that they are.
It’s not only a wise move, it’s the right thing to do.