Thanks for sharing this sentence as an example of what you meant, Christy!
Personally, I think that the question of which one is “more Bambara” is in part sociolinguistic. It isn’t a question that pure grammatical or linguistic analysis can answer because it depends on who you are asking and in what context.
All of that to say that I think the former (“Ala k’a kɛ jurumu kafari ye”) is more natural because, in my opinion, you are more likely to hear it spontaneously produced by people out and about.