i've run into this on my '20. I think the issue is the body panel under the headlights. Your bumper sits ~2" higher than a Laramie or Longhorn type Ram. If you mount the bumpers / bars you're looking at on the Rebel, they'll appear to sit 2" lower (really 1.75" from what i've read), leaving an apparent gap between the body and bumper that looks like a bad body lift.
I've seen a couple guys modifying the mounts to move the accessories up 1.75", but I'm not absolutely sure on all the details.... I'm looking at a hammerhead winch bumper, and it's the same story "not Rebel" - though they have said a guy did it about 2 years ago... they don't have details, or know EXACTLY what he did to make it a production mod. They'd want a truck for about a week to work out details... and I'm not that keen on a vacation to Mississippi just for that.