Reception Timeline

Hello friends! I have a few things that I need help working into my timeline. I greatly appreciate any input!!
First - we have recently made the decision to move from a served buffet to an All - Graze buffet which our venue highly recommends as we don’t have to dedicate a full hour+ for dinner and people can eat as they please throughout the night and the party can start immediately. However - I worry that with a 5p ceremony and a 645/7p reception time everyone will be rushing to the buffet table.

Secondly, we post come from divorced families. So we have 2 father/daughter dances and 2 mother/son dances. How on earth do we incorporate all of these dances in addition to the the traditional reception activities?
Again, you help is greatly appreciated!!! Below is a roughy death of our timeline.
5:00p ceremony 5:30 cocktail hour/pictures 645 - entrance and first dance
(Parent dances, cake cutting, shoe game, garter/bouquet toss)
10p - send off