Sounds like a great day to me! I know we would happily pay for our meal and be super happy if we got to chose what we could have! Recently DP and I went to a wedding and the bride and groom had spent heaps and on the way home we felt so bad for them because the food was terrible - I know we didn't go for that but I know it wasn't cheap for them.
Goodluck its your day do it which ever way makes you both happy!