Dont' know where you are but if close enough give her a try. She is here in Central Jersey but I don't know how far she travels.
I work with yearlings at the same STB breeding farm she worked at and the yearlings are always a pleasure to work with. Show them once and they have it!
When we did videos this year for the auction every yearling trotted the fence line even the pacers and this is pretty normal. They consolidate the pacing with training and tack. They come in all shapes and sizes but generally all have a willing and kind nature and are fast to learn.