I'm hoping I can get some ideas and guidance here...

Here's the story so far:
I'm trying to build a Narrow Band (and/or Super Narrow Band) FM
Receiver, targetted primarily at frequencies around 75MHz (The band our
Fire service operates on here).
Now, I know the MC16136 IC would be almost perfect, and I can find many
circuit diagrams for it, as well as for the famous TDA7000 (and
children of the TDA7000), however, I can't find a reliable source in
New Zealand for these two ICs.

So what I am looking for is, a circuit diagram for a NFM receiver that
uses current production chips, that I can get my hands on. (I am
considered building a few of these, but not enough that I can order
these chips from overseas).

If anyone has any ideas, or places I can try, etc I would very much
appreciate the input.

I do have some electronic skills, and can build basic single layer
PCBs, so I'm not a total novice.

Obviously what-ever I eventually come up with, I will be posting such
circuit diagrams on the Internet, share and enjoy, etc.\

Thanks,

Nick