If you remember my post about FI accidentally over inviting and me being livid, then I have a happy update for you! We are currently looking at a MAX of 243 people! (We meant to only invite 250, but FI counted incorrectly and invited around 278-ughh)
And for any and all lurkers- Never plan on over inviting by assuming people will RSVP 'no'! We've had plenty of people RSVP 'yes', when we thought they'd be saying no. It is not worth the stress of worrying about if there will be enough room for all of your guests in the end.