If you have a pickup truck, you can get your nearest quarry to load you with enough to do the job. Do not be tempted to fill your truck bed; you'll squat the ass end and not be able to steer 'cause the front tires can't reach the pavement. 1/4 yard should be plenty, unless your pothole is over 6" deep, and should probably weigh in the 600-800lb range. Multiple trips with too little is way better than sitting on side of road as object of ridicule.
Get ABC stone, also called "crusher run". Shovel it into place, soak it with water (not saturated), level it, and then compact it (your truck or tractor is heavy enough to do this, or rent a wacker-packer tamp or a plate tamp). Then, scarify it, if possible, and repeat the wetting/leveling/tamping phase. Will "set up" like concrete.
A box blade is perfect for this job, but not necessary. A trucking company will probably have a minimum load requirement in excess of your needs. A craigslist ad in search of small hauling help might be worthwhile if you don't have the p/u.