My fiance and I both have very large families and are planning on a limited budget. We are not inviting everyone to the reception and have found a venue for the ceremony where we can serve light refreshments and mingle with those who will not be going to the reception. We need a headcount for food at the ceremony. Do we create two versions of the RSVP card or request ceremony RSVP by phone/email in the main invite body or assume that everyone invited to the ceremony only will attend.... what is proper in this case? Thanks!