The Man is closed starting Friday night as they prep it for immolation. This may impact your plans for the procession.
Also, Friday night is a much better night for organizing big groups to do things, like bands, processions and weddings. There are no immediate demands on them for later in the day, such as running back to the Man to be part of the Sat performance or finding a good place to sit for the Burn.
I shot an amazing wedding on playa two years ago. It was Friday evenings and everything (including finding a band on eplaya) worked out just great.
Photos: http://www.hieroglyphphotography.com/We ... -and-Shoko