Dallas:

If you are already at the minimum bend radius, you could just start the bends farther apart.

I think you misunderstood the other part of my drawing due to my amatuer drawing skills. the lower supports are fine. if anything, I would only slightly rotate them to be parallel to the radiator openings, not to verticle. the 2 verticle lines I drew are just vampire fangs, cones that attach to the top bar only.