A backhoe is not the piece of equipment that I would choose. You would do better with a motor grader. Unless you have experience in operating this equipment, you would do better to contract the rough grading to a skilled operator. You must first determine alignment and grades. That will take a topographic survey. Set the alignment and grades so that the cut and fill are roughly equal. If you are locked in on alignment, then set the grades so that cut and fill are roughly equal. You will need to provide for drainage, probably bar ditches each side of the road. You will need to provide for some kind of surface, preferably one that sheds water. In Michigan, you will likely need to consider the frost level. Make sure that your fill is properly compacted. I'm assuming that your traffic will be light and infrequent. If that is not the case, you will need to do a pavement design.