University student Angus Dinwiddie has travelled all the way back from Christchurch to take part.
Regarding their opponents, McIlraith also stated Marist will not make any mention of the problems Paraparaumu have been through this week in the aftermath of last weekend's controversial senior match with fellow Horowhenua-Kapiti club Weraroa.
NZ Cricket is currently investigating two members of the club for the fight that occurred, with initial media reports saying Weraroa were the instigators, which they denied on social media this week, claiming some of their player's actions were retaliatory.
"I've heard so many things. You don't know what's true and what's not," said McIlraith.
His side has been instructed not to unsettle Paraparaumu with sledging about the incident.
"Dom Rayner said to the boys, 'don't worry about it, focus on us and we'll be right'."
Weather dependent, the final will start at midday.
The Marist team is
Chris Stewart, Dominic Rayner, Zak O'Keefe, John McIlraith (c), Ben Smith, Mark Fraser, Craig Thorpe, Nick Harding, Sam Beard, Angus Dinwiddie, Thomas Redpath, Sam O'Leary.