I'd rather just assume the mail will bring the contributions promised and have you split the difference; trouble is that some of the pledges were vague and I'm not sure how much they intended to send. I can always contact you later if there is a major default by a pledger.
Private email follows.
3156.39 total expenses - 2413.25 received -530 pledges still out = 213.14 left to be split as close as I can figure right now.