Since he's still young, you can't bash his downhill build to much since he's still growing. And from their website, his pasterns aren't too bad! I've seen worse. And yes he is big for a now 2 year old, but I've seen yearlings at quarter horse congress bigger than this pretty boy! Some don't like him, but I'm a head hunter ;) Pretty head gets me every time!
In the end he should level out since he's only 2! And then he should be a well balanced individual, wether he is the most appealing for some to look at or not. Conformation is the basis, and he is built very nicely! Hopefully his hip pops up! Then I'd take him in a heartbeat, he'd be the most balanced horse in my barn!