Make sure the people putting on the drive have experience setting one up. Went on a forty mile ride a few years ago that was well organized except for one thing, they did not enforce their minimum speed. Imagine following a john deere L for forty miles as we all did. Make sure both you and your tractor are road worthy. No one enjoys driving their tractors on the road more than I do but I would think long and hard about doing it again. Think about some creature comforts like a cab or umbrella to sheild you from the elements.