If you are going to be in France for awhile, I would heartily recommend buying a small pressure cooker. I have two, the smallest of which is 4 quarts, made by Fagor, whose products are sold in France. You can make homemade stock in approximately 45 minutes, including prep time, in the cooker. I do it all the time. It's a lifesaver, and I don't have to buy stock. Plus you'll have some nice leftover chicken. (I use legs from Trader Joe's.)
For some reason, people still have this idea that pressure cookers are a problem. As long as you follow the instructions, they are easy and quick.