Ha! I saw this mare just this morning and trying to come up with reasons why she was the horse I had been looking for, but I know myself enough to realize that right now a wild, unbroke horse is just not for me. If you have the resources, the space and the experience to take her on, I'd say go for it.
LOL, never mind. I browsed the BLM site and got it figured out.
She is a stunning little mare, gorgeous coloration. I don't see any legitimate reason why she couldn't be pretty good at barrels. Yes, she is a bit longer through her body so it would take more work to get her to really bunch up around the barrels, but, that longer body also gives her a longer stride and that means more speed in the straight.