I think the only kiwi professional defender who is off contract at the end of this season is Tommy Smith. I can't see him coming back to NZ. I'd happily take Themi, M Boxall, Musa, or even a post-injury Storm Roux but they're all locked in and I can't see WelNix forking out a transfer fee. Tuiloma might be the best bet because Marseille might terminate his contract.
Otherwise it's Aussies or an import for us. Unfortunately there don't seem to be many Aussie options around either