OK - Here is a real embarrassing update...
I discovered I had recorded a video tutorial (last fall) showing how to do this, along with my workflow of gimp->inkscape->gimp but never uploaded it
It is now hosted at ShowMeDo, so head over and give it a watch if interested! At the least it is another opportunity to laugh at my Canadian accent
http://showmedo.com/videos/video?name=2620020
-Rob A>