I don't mean to sound crass, but if you knew you were gonna reject all of the good advice from us because you knew you were gonna be handholding and stealthing, then why did you ask all the questions? It takes time to provide extensive answers to 10 questions!
It doesn't really matter...I do see that you thanked us for our responses, so I appreciate that.
Anyway, enough of my complaining.
If you've never shot hand-held, something you haven't considered (I guarantee) is that it's literally impossible to hand hold a video camera for 2 hours. After less than 10 minutes your arm is ready to fall off from the pain...it's virtually impossible to do for 2 hours. The alternative is to continually switch hands which causes ever MORE video shakes and causes the camera to lose focus and lose centering on the band (in other words, camera points to the floor, ceiling, left, right..anywhere BUT the stage while you're getting arm relief.) The longer the show goes, the more frequently you need to change arms.
You mentioned putting the camera on your knee. That can be a nice alternative for outdoor venues where there is a hill or something where there will be no people blocking your view. Indoors, your chances of getting a good knee shot are WAY low unless you do alot of homework in advance to get a prime location...such as the front row of a balcony or something like that.
There's one follow-up point on static shot videos. You mentioned that you won't be able to walk around. That's not the point. The point is that ALL video cameras have the capability to zoom and pan left and right. If you just have a video that never zooms in or moves around the scene with close-ups, you video will be totally boring.
The advice people gave you above was from the collective experience of doing this for many years and many shows. Reject this advice at your own risk of getting crappy video that has little or no trade value.
Not only that, but once you get the reptuation in trading circles that you trade shitty videos, your ability to trade for the good stuff goes way down because nobody will have a reason to trade you for garbage. My opinion as usual.