Nazir 60: 4 Cases of Purification

A new mishnah - with a nazir who may have come in contact with a dead body, and who also may have been a Metzora. What is his purification process going to be? How many days must he wait to purify from each of these possible impurities? Also, how the shaving and sacrifices will have impact on the person with these 4 competing possibilities of nezirut.