It’s been awhile since your request, but I wanted to let you know I’ve created single line fonts for Rhino. I’ve got two available so far, and will be adding many more. They’ve been tested by the development team at Rhino and work in Rhino 3D v. 6 and 7. They can be found at Single Line Fonts - Rhino Versions. I’ll be glad to answer any questions you might have about them. @laurent_delrieu @wim @RIL