I realize this is an older thread, but many of the off road travelers use the max coupler (which is what will be going on ours).
Watch the last video. This was his original made to see how much it could be put through. No wood, it's basically a total roll cage, and no damage was done(except to the microwave) as it also has skid plates underneath it. It's been on roads I wouldn't take my 4x4 on. lol He has built trailers forever and knows what he is doing. Awesome man to talk to knows his stuff in the overland community !!
It give a great video of the max coupler.http://aspenxtrails.com/videos/