Cheers guys, should be a learning curve to say the least.
Another thing to say, yeh, i've done that before, i probably wont want to do another ever again, but its nice to try something outside your normal scope.
Ali, i know what you mean about the Queen, there are curtains on the windows, wonder if i would get away with working out which one is creating the light & pulling it over a touch? Worth a shot.
Good tip about the WB, will deffo do this for the interior stuff, makes sense really.
Outside, i will try my best, i've been thinking about it & think i may ask people to stand infront of the bushes (trees, plants, whatever they are) at the end of the wall, for couple / individual shots, then move people into the garden area for the larger group shots.
Basically, i think, i dont need any guests arriving apart from the bride & groom, i think? everyone else can be shot afterwards at some point? or should i be trying to shoot as many guests as possible before they go in?