In a long dress then, I'd go with the ivory ones and move on to the next thing to worry about. ;~D
Are you going to be able to easily meet with us before the wedding? I'll send you the torture device if I need to, but if you're coming days early and think you might even be able to moot beforehand, I'll just keep it safe here :~D
I think at THIS point (still don't have tickets), we're planning to fly in Wednesday, with the rehearsal and all being Friday (?), so I should have Thursday to do a little goofin' around.