I'm sick that you're "😀" over wasting government money on an unnecessary program that is essentially a money making scam (and that's exactly what a low-tier Caribbean school is).
You don't have the insight to know why you got kicked out of medical school -- 17 professors versus 3 thought you weren't just below average but were so beyond potential for improvement that they cut you from a program after innumerable people invested in you for 3 years. So, I'm guessing this question is just more evidence of your poor critical thinking skills -- yes, let's take the money citizens of this country give to you so that after your service you can make a better life for yourself . . . and throw it away unnecessarily into a Caribbean MD program?
Clearly you are not going to be a candidate for residency (not that it sounds like you want one anyhow), so you don't need to become eligible for that. At the very least just try to get into these programs without the 4th year first -- the medical education you had was the part that should be relevant to non-clinical programs. You'd probably be better off going to the research programs with your tail between your legs saying you realized you were interpersonally above your head, your heart was in the pathophysiology and not in caring for the patients, and that you concur with the committee's assessment and realize you are more suited to a career in biomedical research...that it satisfies all the things that originally attracted you to medicine but is actually a good fit for your strengths. If you go finish your MD at a school where that essentially just means that you (or all of us) can pay the tuition, to me it looks like you were in denial that you couldn't game your way back into the system.
I'd be really curious to hear what those other 17 instructors said. You may fool pre-meds on these boards into thinking your story is that simple, but anybody who has been through medical school can tell you that you don't get 17 instructors in favor of dismissing you just from being a wallflower. The fact that you evidently still don't understand that and want to continue subjecting patients to your care, now within the framework of a program with lesser oversight is disgraceful.