After I posted, I did some research, and it seems like the newer Aliners have a lot of build and quality problems. In fact, there was a 2012 listed here in the Rockies for 12k on CL. I called the owner and he'd just lowered the price to 7k because the dormer was leaking and couldn't be fixed, at least not by him. So maybe you dodged a bullet.
Unfortunately, it wasn't "the one". When we got there, the owner said he'd already received a full-price cash offer.....but he'd be willing to sell it to me for more. (If he had a full price offer, why was it still sitting there? I didn't ask.)
At least I got to pet some very friendly cows. :)
Thanks for the replies and the link. I've already been to the ALiner site many, many times.
I love ALiners. See if it has the high winds package, you'll want one if not. I think they're easy to install. Make sure the AC works, they have a bad rep. Make sure the axle is straight (the doors should close straight and true). But I really wouldn't worry too much about one that new. They're really nice trailers. Had a 2008 Expedition.