Thanks to the link Goff_nznr posted I had an easy way of finding where the airports were, I just had to pick one.
I chose NZMA - Matamata because the default was so far from reality that anything I did would be better...or that's what I hoped.
Here's the Default NZMA:

And here's what I've done so far, through AFCAD2 and Sbuilder:

I'd like to think it's better, but still many problems with it, so any tips would be most welcome.
Could anyone explain to me how to create custom textures so I can make my own runway grass, as this doesn't look quite right yet.
I'll update when I get more done, next is buildings, but as I have no pictures and I've never been there myself I'll just be guessing from the blurry google as to what goes where.

