She just reminds me of a couple of my Purebred red/white Maine Anjou cows that I have. Given, she is very thick and heavy boned but bred to a good breeding Shorthorn bull, not too clubby, she could throw a really nice show heifer or maybe even a herd sire prospect. I would suggest Star Bucks but not on the first time on a heifer like that, but you will want something structurally correct with enough curve in the back legs. I would be a little worried about structure using JPJ on her but if the calf wasn't too straight then that could be a really good calf...