...yeah, I'm planning on making something with regular 'ol round tubing before I saw up the Air stuff.

I saw those Zona Air tubes on the Nova site - they look like they could be worked to match up with Air, especially the down tube - but I think that a round tube might be easier to form into the ellipse shape of the Air top tube. The Zona top tube has a shape more like a teardrop.

I couldn't find any pictures of frames made out of Zona Air - can it be used along with brazing?