As far as Off Road is concerned, one size does not fit all. Youll need to examine the route to see if you can even make it. I would un hitch and drive it in my truck first. I did this the first time I camped on the outer beach with soft sand. The Trailer you pick can only be so high before it is to high for over the road and becomes unmanagable. you can also have the trailer lifted just like a turck with suspension mods if the model you like is to low. I would think that the shorter the length the better.