Meanwhile, Chakabva, Sikandar Raza and Sean Williams all pick themselves in a full-strength Zimbabwe side.
Kaia, Marumani and Nyauchi, though, were among the reserve players, along with Kevin Kasuza and Tanaka Chivanga.
Zimbabwe will face Ireland, West Indies and Scotland in the opening round of the T20 World Cup. They will tune up for those games by facing Asia Cup champions Sri Lanka and Namibia in warm-up matches on October 10 and October 13 respectively in Melbourne.
Zimbabwe had made it to the T20 World Cup by going unbeaten in the qualifiers at home.