For what it's worth, I was waitlisted there with roughly the same GPA and a few more points on the LSAT.
Ditto to jenesaislaw's point. Can you feasibly get to another test center and get a cheap hotel room forthe night before? The December test will also hold up your applications until after the new year. I'd look into this option and prep your behind off.
Again, for what it's worth I got in off the WL at IU-B with a $20k scholarship with good terms.