Budget Large Venue Projector Any Cheap Venue's In The Northern Melbourne Suburbs?

Any cheap Venue's in the Northern Melbourne suburbs? - budget large venue projector

Do I need a place to host my wedding, but I am on a budget of me and my boyfriends Family's total of 150 people. I can not afford it, even more. Most places are at least $ 60 per head.
Does anyone know a cheap place in a northern suburb of Melbourne?