1. milling existing asphalt. skid steer with attachment for 1-day rental.
2. (optional) base repair. tack coat.
3. overlay asphalt 1-1.5 inche. assume drive way is 20'x30', for approx. 5 tons. small dump truck for hot-mix asphalt.
4. compaction. skid steer again.
5. dispose of old asphalt