Veteran teammate and the tournament's top try-scorer after pool play, Honey Hireme, will start on the wing with Women's Player of the Tournament, Teuila Fotu-Moala, featuring in the back-row.
Benson says selecting the team to play in the final was no easy task.
"Based on the performance of all 24 players in the squad during this World Cup, selecting this team has been the toughest decision so far," said Benson.
"I'm excited about the team we've put forward and I'm confident it fits the game we need to play against Australia."
A win for the Kiwi Ferns would see them secure their fourth World Cup title since their win at the inaugural Women's World Cup in 2000.
For the first time, the women's final will take place on the same day at the same venue as the men's World Cup decider.
Women's Rugby League World Cup Final - Kiwi Ferns v Jillaroos, Saturday 6.45pm at Suncorp Stadium, Brisbane
Kiwi Ferns: 1. Apii Nicholls-Pualau, 2. Atawhai Tupaea, 3. Maitua Feterika, 4. Shontelle Woodman, 5. Honey Hireme, 6. Raecene McGregor, 7. Kimiora Nati, 8. Lilieta Maumau, 9. Krystal Rota, 10. Aieshaleigh Smalley, 11. Teuila Fotu-Moala, 12. Hilda Peters, 13. Laura Mariu (c).
Interchange: 14. Nita Maynard, 15. Krystal Murray, 16. Ngatokotoru Arakua, 17. Amber Kani, 18. Georgia Hale, 19. Louisa Gago.