The face is about 14' wide.

Looks really simple, right? I firsted created the hot dog shapes in Turbocad, using measurements taken from the sign. Exported the drawing to Inkscape and tried text on path. I couldn't get the text to properly fill the hot dog arc. Usually it wasn't wide enough. If I tried to scale the text on the path, it's path would scale as well. Trying to scale before text on path was useless. Breaking the text, and using the place on path extension was closer, but having to undo and change scale repeatedly sucked. I couldn't get results that were satisfactory. I'm looking for dead-on precision, not eyeballing, close enough. If I was doing origional artwork, then I would make the hotdogs fit the text, instead of the otherway around.
I tried other SVG editors, with no success. I could probably do it in TurboCad 11--no text on path function--the hard way. But I would like to do it with Inkscape. Any suggestions, tips or strategies? Or is Inkscape just the wrong tool for the job?
So far, Inkscape has worked out very well for doing vinyl for company vehicles, logos, and such. It's far superior than the software that came with the cutter.