That striping at the base of the ears isn't atypical - it can happen at the start of color on the legs too. Look at the front leg on the cal I posted above. It's not ideal but it does happen.
Those white feet would cinch it for me - brokens almost always have white feet. Her tail, too, looks like what you often see on a broken.
Sure, having that broken and harlequin possibly connected to her would make sense. I'm still waffling on the harlequin, though it's a more convincing possibility given her hutch-mates. Her nose seems to have a suggestion of harlequin influence, as well, with what looks like it might be a band across the middle of the marking:
View attachment 34430
But... her pale sable colors and color variations are
something I've seen on warm-weather cals, including the mottling on the ear tips noted by @judymac
. If the temperature varies a lot during fur growth, you can end up with different colors on a single hair, as well as different colors on different hairs, often looking similar to ticking or banding. Here's a cal kit that that is both pointed and "ticked" after being chilled in the nest box. You can also see that what eventually ends up looking black as the color intensifies, is actually sepia:
View attachment 34428
This kit ended up a very normal-looking californian, but she was a spring bunny in Alaska, which is ideal for cal color development.
Your post doesn't say where you are - did your doe grow up in warm country?
Yep, that sounds like a pretty good way to find out!