I have a 53' commercial boat trailer for sale. It's a large, tractor/trailer trailer.
If you have a larger boat that you like to store out of the water and want to save on transport costs, you can get any owner/operator to tow it for you, you don't have to own your own tractor. Or maybe you have 3 or 4 smaller pleasure boats to haul at the same time.
I'm willing to make a great deal on it. It's taking up a lot of space that I just don't have. PM Me if you are interested.