Thanks for everyone's input. I've now got this completed (though I can't find a photo of the final build). I had the chrome redone on the fork and rear triangle, and did a little brazing - added water bottle mounts and brazed together the sheet that they used on the rear brake bridge, plus spent a little time touching up the original brazing to make it a little more polished. I polished all the components, rebuilt/replaced everything and then resprayed it. It's a little big. But, French bike, French fit!