PhD programs can be even more difficult to get into than MBA program. Why aren't you considering a retake? 4 years ago means the test is expiring soon. Are you applying for next fall?
Why are you targeting "Ivy league schools?" There are tons of great MBA programs that are non-ivy--like NYU, Indiana, and Berkeley to name 3. Your chances are going to be slim at any top school with a score that low. You'll have to be Adam Smith or have discovered a cure for cancer.
Blogging about the MBA application process. Because I need to do something with all this bschool energy.
http://www.mybreakaway.com/ Recent post: September 20, "Transitions"
Yale School of Management MBA Candidate, 2015.