Nze, I wished I lived in Paris but I live in Hawaii which is extremely far from France.
I appreciate that you shared the link of Pierre Stringa. I have not seen his website before. Even though I can not read French the pictures are very clear and the process quite evident. I looks simple but I know that dealing with soft gelatine is no easy task.
I am very shortly going to get some tissue from Bostick and Sullivan and give carbon printing a try. I will use 4x5 negatives to practice. When I get confident I will print the 8x10 ones.
Wish me luck!