Anyways here are the potentials:
1). 18 yro appy gelding. 15 hands. Was used as a kids horse, but kids are gone. He was used mostly as a trail horse, no spook, bolt, rear, etc. Sound, no issues. I can't see anything majorly wrong with him as far as conformation.
2.) 12 yr old AQHA mare. 15.1. Quiet, not spooky. Used as a trail horse, very confident on the trails. No buck, bolt, rear. Her ad: Quarter Horse For Sale, New Jersey, Howell
Both of these are almost 2 hours away. I haven't found much locally in my price range, i'm being extremely picky too though! Found one other horse, sounded perfect, but when I got the photos of him he was sooo sooo skinny. Which is probably the reason he is so quiet, its hard to say.