frosty, it is only about 2 feet. I think I will make a cardboard cutout of the boat and give it a try to see if it will turn.
basscrasher, I have seen a couple pictures online where people have done this. However, they did build a wooden brace that it actually sets on. They claim there is no problem with the turning or sliding. The brace actually has pieces sticking up tight against the sides of the boat. They also state by doing it this way, you have some room in the bed under the boat to load items. It does stick up, but when I'm hauling the trailer, I can't see anything out the rear view mirror anyway. (other than the front of the trailer)