The people aren't the greatest, but the place where we got Vega and Gem specializes in Apps. They show in a bunch of circuits (I do believe they go to the app shows in Texas?)
They don't have pictures of the horses and they haven't updated in a while, but they do have good looking apps there.
I can give you their number via PM if you want. But I do have to say, when we were there we did not like the people that were training there, but they have since moved on, so I don't know how the training is there anymore.
This place is kind of expensive, though I do think you'll be able to get a 4 year old for under 6k. She mostly gets quarter horses and paints but she will get a few apps here and there. index