They can only say 'No', and if you're not hearing 'No' then you're not hearing 'Yes'!
Is there an NZDA range near you? Probably a good place to try as well, nothing like meeting in person to judge character. Keen to know how the letters work out. I might knock on some doors if all else fails. "I'm interested in such and such... Do you know anyone who I could talk to?" rather than "Hi, you've never heard of me but would you mind if I wander your property frightening livestock and leaving gates open?" :-D
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