Forget those systems that just stop the drawbar from spinning and get/make something that incorporates the whole 3pth. This way you can use a 2' receiver and insert whatever you need, a trailer ball, pulling hook, etc. And when you raise the 3pth the drawbar will stay level.
For trailer towing just make sure you follow the normal guidlines about keeping ample tonque weight so the 3pth doesn't try to jump up....