Depends on just how well on the MCAT you do
http://forums.studentdoctor.net/thr...-2-77cgpa-post-bacc-3-66-gpa-34-mcat.1096456/
n=1 but here is an example of someone in a similar situation as you with a 2.7 cGPA who was able to get into an MD school.
https://www.aamc.org/download/321518/data/factstable25-4.pdf
About 20-25% of white applicants with a 2.8-3.0 GPA and 30-35 MCAT who applied the past few years have gotten into an MD school. I'd imagine the successful candidates had a story similar to yours.
With DO school grade replacement it is much easier to get that cGPA above 3.0 and with a solid MCAT score an acceptance definitely is possible.
SMP are last resort type options where you basically put your career in medicine on the line and a poor showing will crush any hopes. If you have another avenue to make yourself a viable candidate(ie crushing the MCAT or grade replacement to get the cGPA over 3.0 with a good MCAT for DO) then that's what I would pursue first.
If you can do well on the MCAT and apply with a sub 3.0 GPA the biggest challenge you might face is getting eyeballs on your app and not getting screened out. Schools are often tight lipped and full of lip service when talking about GPA cut offs, but if you can extract some from schools by calling them when the time comes that is worth doing.