Need some Guidance...Concert type shoot coming up.

I am shooting an event next week that will be much like a concert. Various dance groups performing on stage. The place has hired a full audio crew and also hired me to shoot the event. I did an event in this same arena back in April and I used my Lectrosonic wireless to capture my audio but noticed drops and hits throughout that shoot when I watched the footage back. Yes I monitored the audio with headphones. I did have a 2nd camera and used the audio from that instead of the one I was monitoring.

So this time around I wanted to do without the wireless if I could and go with a portable Audio Recorder like the Zoom H4N. I contacted the Audio Engineer today and he told me to reconsider using that to capture audio out of his board because he will be doing the mix for the house (arena the event is being held). So there is no telling what kind of audio I could get from that board if it's not mixed right. He said it could come out "muddy" or whatever. He also said it depends on what board he will have that night if he could mix it a certain way for my recorder to get a good mix. I figured I could just hook up the recorder to the board and get a good audio mix out of the board but I guess its deeper than that.

My camera will not be close enough to run a hard line cable from the board and the folks at the arena do not want any cables on the floor even if they are taped down, they still won't allow it. That is why I used wireless the first time. The audio guys usually set up their boards right at the stage off to the side and I will be back in the house on the floor which is a great distance between me and then.

So what are my options? I need to get a good mix!

Although its not perfect, I thought about getting a shotgun mic and placing it on a stand next to where my camera will be (or attach it to the camera) and run that into a small field mixer and then run that audio into the camera. It won't be perfect but is that an option?

If push comes to a shove, I can use my wireless again but I want to stand clear of the drops and hits of static from interference with other signals in the arena.

This arena I am shooting in is on a college campus where the basketball team plays their games, just to give you an idea of what I am talking about.

Thanks for any help or suggestions you can give me.
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