Good questions.

You can get on the sauce when ever you like
BBQ is now going to be a burger vans, as the numbers are getting too large for a BBQ, So you will have choice of hot dogs , burgers etc - Unsure of prices. sorry
Cooked breakfasts are confirmed for approx 35 people - Time 09.30am
There is another event on the Sunbdeay, however as the camping feild is seperate and has a seperate exit we can leave pretty much when we are ready after breakfast.

Hope this lot helps.