You are in a unique position. You’re not a 22 yr old undergrad applying. You have a master’s degree in AI, you have significant publications, you have two years of research and engineering work, you are currently a U lecturer and visiting prof.
It sounds as if you are located outside the US currently. The problem is going to be that unless you come to the US in time to do some of your pre-reqs in the US, all your pre-reqs will have been done outside the US (and online pre-reqs are not going to be helpful to you, I think). You can take the MCAT outside the US. If you will have taken all your prereqs outside the US, then everything is going to be riding on an extremely high MCAT score, which would prove mastery of the material.