If you wanna do relly off-roud trips, you have to mention the following things.
A one wheeler is better at single trails, a two wheeler is better at slow passages. If you ride with an single wheeler very slow, you have to balance you, your bike and the trailer. Thats not really easy.

But the Burly isn't a good idea for off-road. The drapery don't like it to be punctured with an knot.
Better are small trailers like the carry freedom y frame or the roland carrie s.