+1 for adding the persona's to the proposal docs.
I'd like to emphasis Andrew's point on conference organizers. From our
experience more often than not they want to get the recordings as
cheaply as possible. In addition to that typically conference
organizers are not even involved in the video recordings at all. They
usually completely rely on us for setting up the gear and and training
the volunteers. Usually they just provide us with volunteers and point
us to the right person to ask when we have a question like where to
get the video and audio feeds.
Thanh