Is there a freq left in Auckland?

I'm on the North Shore and I considered broadcasting our safety information over LPFM to our users but when I did a simple scan of the freq I did not find a free channel, especially the commercial channel at the top of LPFM band swarming over the top of most of the LPFM area in this range (cutting off most of the top area for LPFM. Is it all over for any newcomers with a specialise feed (not music only safety information we were wanting to broadcast).

PS I am a radio engineer so I have a fair ( I think?) idea of what I do and I used an AOR-3000 to scan the band which is a nice mid range and stable (FM) RX Radio.

Regards
Jason