This should work for you provided you can get enough signal into your camera.
You'll need to watch your leads and avoid movement.
Tape down your connections.
You might want to use a tripod since your receiver is going to have to be stationary and will most likely be running off AC power.
your receiver should have an output control (Which is used to control the signal into a mixing desk).
This means you'll have to experiment some way to get the right level so your sound is not too soft, or distorted)