You don’t need scholarships or papers to be competitive for MD/PhD. You need a demonstrated interest in pursuing a scientific career, letters that will back up your ability to do science, and impressive numbers. You have all of those things. You will be fine with a good school list.
Idk about "normal", but its fine, it doesnt really matter. The longer the commitment the better, in my opinion.
I think you would be competitive for every program in the country so I would cast a broad net based on programs that have strong research in your particular field.