I can take absolutely no credit for the project on this page: all I did was import and sell the saws used in the construction. The project is entirely the brainchild of the contributor, Paul Welters.
Paul has a cottage in Normandy which he is in the process of extending and has sent me some photographs of progress to date.
Not something I would tackle these days: looks like a seriously large project, Paul. Congratulations on your progress, and thanks for sharing it.