* I want a boy, either a stallion or a gelding.
Not sure about where you are, but unless you have your own land, finding housing a stallion can be difficult and expensive. i always lean towards geldings, but its personal preference.
* I want a semi high-spirited horse.
i had one of those and although he was a lot of fun, i'd go for a quieter horse these days. why do you want something that is high-spirited? and what is your definition of high-spirited? not trying to cause issue's or sound nasty, im just curious is all.
* I don't want an easy-to-ride horse.
having owned horses that weren't easy to ride i dont hold it in high esteem. i'd take a pliable horse that likes to work with you over an argumentative one any day.
i really think it comes down to seeing horses and finding one that is suitable for you. a horse that you buy may not be everything that you want, but that doesn't mean you cannot teach the horse your own style. thats what i do, and both horse and i love it that way.
good luck with your search!!!!
My Number 1 Rule When Owning A Horse:
"HANG OUT WITH THEM AND BE THEIR BUDDY, THEN THEY'RE YOURS FOR LIFE"