I think you'll be pushing it to get five spots at the Mall for this weekend at such short notice. Definitely look at it as a future option though, (give about three weeks notice to book in). There are spots on the day, up to a max of 20, but that's a risky venture, especially if you've not been before and don't know exactly where you are going.
Going with a few friends to Outpost on 27th but that might be a little out of reach for you.