If you want to maximize your chances and choices:
1. Improve your MCAT, but don't screw around. If you do a 3rd take, give it all you've got, spend 10x as much money/time/effort/anguish/insomnia and do it right.
2. If you'll be happy with DO, go Nova
3. If you'll be happy with RFU, go RFU
4. If you want U of Indiana, wait to reapply until you finish the RFU program
Best of luck to you.