Former Wanganui Collegiate 1st XV player and former All Blacks captain David Kirk is the chairman of the board at Sydney Grammar.
Bensemann said the touring squad of 23 players includes a number of 2nd XV members taking the place of those involved in a Hurricanes development squad training workshop.
"The trip will also include attending the live State of Origin rugby league clash between NSW and Queensland at the ANZ Stadium in Sydney on Wednesday night and a training run with the Brumbies development squad in Canberra the day after the match against the Hunter Hill Colts."
The school came up with a novel "Legacy Sleeve" fundraising campaign for the Australian tour that raised more than $2000.
"We sold the rights to have names on the sleeves of our 1st XV players' jerseys for $100 each and approached many of our 1st XV old boys to become involved. Their names are accompanied on the jerseys with the years they played in the Collegiate 1st XV," Bensemann said.
The names include old boys that later became All Blacks including David Kirk, who played for Collegiate (1977, 78), and Andrew Donald (1974, 75).