Yes you have a good chance. I would certainly rotate at one or several of their programs. I know there is a DO at Cornell in their residency program. I bet you could contact him and get some advice.
Yes, Paul is over at Cornell and Matt is at LIJ. Your scores appear competitive, and you have made a good choice switching from ER. Are you over at NYCOM?
To start, I'd also recommend doing some research into both the (DO and MD) programs and the field.