How much in QLD australia does it cost to get married at the courthouse?

Me and my partner want to get married nice quick and simple.. and CHEAP if all lol. We are looking into getting married at a courthouse in ipswich qld. I want to know how much does it cost.. do i need a form of intended marriage and how much does that cost. Also..can you go in that same day after filling out the forms and get married on the spot?? thankss in advance