Most military helicopters today have folding blades, especially if they are designated to be either transported abroad by ship or operate shipborne. While I am not certain, if New Zealand wishes to use their A-109s, not to mention for their NH90s, for shipborne operations with the MRV, I would assume both will have folding blades. Its not like folding blades cost that much more. Plus, even for land based operations, its easier to store folding bladed helicopters into hangars during a storm.
I'm certain all of the USCG's helicopters have folding blades. I'll say it again, its not like they cost that much more.
I suspect New Zealand may acquire a 7th frame of the A-109s similar to the 9th frame of the NH90s for maintenance training purposes as part of the support package.
I'm also interested in the twin engine trainer. Would a Bombardier Q-200 (DHC-8) be too large? It could fill in like an old Andover, capable of more than just training, being able to also do small transport duties better.