Hey there, I know towing and hauling is a great thing to do and a lot satisfying if it is done by owner. But I think it's not that good for too much of weight and for longer distance. It's too much weight, which you are planning to haul and that too on a motorbike, there can be risks and can turn out to be problematic. I went through this I over weighted in hauling and stuck in a situation where I could not haul it further. Then my brother's friend help me out with it who work in an auto shipping New Jersey
company which was a great saver for me at that time. So I will suggest you to think before you tow overweight and accordingly take decision. Make sure you can manage a big tow properly and safely. Good luck.