I've been fallowing your posts and whatnot. And I had a thought. You said somewhere along the way that you used to ride saddleseat and weren't as confident in your shopping abilities in the sporthorse market? (Ignore me if I'm wrong or making things up)
I've been around my share of saddleseat type horses and event horses and saddleseat horses are not all that different in some aspects. They both are brave, have good heads, nice mover etc.
Maybe shop as if you were looking for a saddleseat horse? and maybe don't even be afraid to look in that realm for what you are looking for?
My first event horse was an ex-arab Class A show horse who won multiple top ten and championships who I started jumping.
I've known known and evented several NSH's.
Many people on here know saddlebreds who have been really successful event horses.
Just a thought!