The Full Event (Nelson) Event Cache

It is that time of year for our annual event. Couldn't make it to last years event because i was working down south. This year i have no excuse as doing a bit of work around here. The event will be held at The Speights Ale House starting at 5.30pm. Could you please give me a rough idea of numbers for a main meal as they are going to be busy. Hope to see some new faces as well.