No offense, but I would not even consider taking a N/H horse. Yes she may be non-symptomatic, but, there is no timeframe for HYPP. It could hit her the day you get her home. It could wait a few months, or never happen at all. But that's not a gamble id be willing to take.
What are you plans for her? Breeding? Id never breed that horse and add to the world of more N/H horses. Trail riding, she could be okay. Anything strenuous? Is likely to cause her to become symptomatic.
You also cannot feed N/H horses like a regular horse. They must be placed on a strict diet. Its likely to be more expensive and time consuming. Are you prepared for that?
If you are prepared for her, then go for it. But I wouldnt risk giving my heart away to an N/H horse. It'd hurt too much if anything did happen. Posted via Mobile Device