You could try this one: http://www.biometype.com/
Not sure if that's what you're looking for though.

That was in the right neughbourhood. But after posting this I found out that Klavika has a condensed version (how did I not know that?), which makes it ideal for what I was trying to do.

The application requires a lot of digrammatic work in a design-conscious setting, so I wanted a condensed that wouldn't lose the "feel" of the primary typeface.