Anyone know about Wilson Sheep Camp campers?

I thought about posting this over in the suspension section, but check this out..
http://www.wilsoncamps.com/index.html
What I find most interesting is the hay wagon steerable configuration.. I did a little research a year ago because a hay wagon has better ground clearance than a conventional trailer, but it didn't belong on the highway imo. But wilson camps seem to have it figured out apparently.
Other than making it difficult to level, are there any major drawbacks to this steerable configuration and any idea how the suspension works? I cant find any close up pictures, but it looks like leaf spring.. And I imagine the steerable front axle isnt available to buy..
Anyway, what do you guys think?
http://www.wilsoncamps.com/index.html
What I find most interesting is the hay wagon steerable configuration.. I did a little research a year ago because a hay wagon has better ground clearance than a conventional trailer, but it didn't belong on the highway imo. But wilson camps seem to have it figured out apparently.
Other than making it difficult to level, are there any major drawbacks to this steerable configuration and any idea how the suspension works? I cant find any close up pictures, but it looks like leaf spring.. And I imagine the steerable front axle isnt available to buy..
Anyway, what do you guys think?