I don't really think the budget is important. I've been married twice, first one was when I was very young, in the church where both our parents were married in, big dress, big venue, a million guests, you know, the whole kit and kaboodle! Didn't last long so was a waste of money really!
I then ran away to Scotland and married my true love in a tiny outdoor ceremony on the edge of a Loch in the highlands. We had the reception (12 guests) in a tiny pub built 300 years ago that had a function room, beautiful local food (salmon caught in the river and venison from the local supplier), a celtic band who played all night and fabulous Australian wines. It was very small and intimate and we ate and danced the night away. Best day (and night) of my life.....
The only things you need for a wonderful memorable day is 2 people who are in love and willing and ready to dedicate their lives to making each other happy.