Neither is valid to sponsor, see this list:
Skilled – Sponsored (Migrant) Visa (Subclass 176)
Uncle would be IF he was usually resident in AU, but he is not.
Cousin is not a valid sponsor.
Skilled – Sponsored (Migrant) Visa (Subclass 176)
Uncle would be IF he was usually resident in AU, but he is not.
Cousin is not a valid sponsor.