I'm looking to invest in an audio recording setup for stage performances and other events held in auditorium type spaces. I'm willing to spend around 500 - 700 dollars total for the mics, but I'm really having trouble figuring out which would work best. I'm deciding between boundary mics, a stereo pair of condensers (ORTF?), a shotgun (which would be preferable because of its uses in other recording situations), or a combination of them up to four total (2 camera inputs plus 2 laptop). Another thing that makes the shotgun approach so appealing is that it's much less intrusive in the space to set up when it's further away from the stage.
How can I get the best possible sound quality while minimizing the hassle of setup?