I live in UK, but for unfathomable reasons, find myself drawn to NZR trains, especially the oddball stuff like this. I blame Marcus Lush for this.
Sorry, but I can't help you.
I am building a OFFSHORE RAIDING CRAFT as used by Royal Marines and require 2 water jets the model is 1 metre long . Do you have any motors suitable for this
Generally no. There are some working models available in NZ at other scales, HO and 9mm I think.