Pretty good price there, but seen better in past research. I looked at these style cabins before deciding to build myself, and then a lack of employment nixed it all together. A couple of place make them in the DFW area. I even went so far as to talk to one guy who will build it on site if you don't have the road to get one in where you want it for 10% extra. He ended up being the out of regular work new home construction foreman for one of the big builders in my neighborhood. They are just to long and skinny(for trailering) to look right unless they have a porch added to the long side.

http://texaswoodlot.blogspot.com