My response is WHY!
A 4Runner is a Mini SUV, I see so many people that either don't read on don't care about what COULD happen. I am glad I was not coming the oppsite direction, with all my kids in my Motorhome!
There is a thing called GVW, Max Tounge Weight ... I would no even pull this with my GMC1500 Pickup, maybe the 1500HD???