Picture the exact spot in the state park where you want to stand, because twelve months out is when the shelter reservations open and disappear just as fast. State park pavilions cost a fraction of traditional venues, but they book up the moment the calendar rolls over, making that initial reservation your true starting gun.
Once you lock in the date, the timeline splits into early bookings like permits and officiants, and things that can wait until the season gets closer. We are looking at a typical total of about $2400 for the whole setup, and spreading that out takes the sting out of paying for everything at once.
That 0% intro window is a hard deadline, not free money, and whatever is left on the balance when those 18 months run out will start getting hit with regular interest.