As someone who has been married for over 30 years, let me offer some unsolicited advice.
I know the wedding seems terribly important now, but you'll discover what everyone discovers - 2 weeks later, a year later, whenever, it suddenly seems so irrelevant.
Marriage is a milestone, yes. But it disappears in the rear view mirror very quickly. The material parts of it vanish even faster.
The important part is you, your spouse, and the people you gave with you. No amount of money, no location, no live band, will make your marriage any better. That will take daily work, communication and a willingness to face challenges together.
So, how for it. Write a script, maybe you'll get a slot. But I urge you to hold this desire lightly. There are waaay harder and more important things to come.
I say all this knowing full well you'll ignore me. I can tell you what everyone knows, but experience doesn't work like that. That's OK.
On the other hand, ask around, and see how many married folk you know still care about their wedding...