Wow, it's been almost nine years since I last responded to this thread I started. It was interesting to go back and re-read some of the early speculation, as well as the relevant information and photos that were shared along the way. In the beginning I tried several iterations with this frame. I eventually wound up building it entirely with French components (other than the Brooks Pro) - SLJ mechs, Stronglight crank, etc. It's been that way for several years now and I really don't anticipate further updates or mods, so here is my Carré for posterity: