are you looking for formal posed shots only, or also documentation of the ceremony? I'd be up for doing the formals. I could even do something really spectacular in that regard, some large (or even ultra-large) format platinum prints. Or just keep it contemporary and shoot Portra 160nc through the RB67.
Looking for a few formal posed portraits, and then photojournalistic coverage of ceremony and reception. Mix of color for more staged shots (e.g. floral arrangements, room or garden, etc.) and mostly black and white for the photojournalism.