Thank you for your comments and your advices. I understand your method to build the wheel bays. Having built the bays, I realized it was only a little space in the framework to put them up. I found it hazardous to glue the bays inside the wing skins. So I decided to proceed in reverse order. It was a good idea in relation to the result. This kit is only my fourth project. Actually I test and discover new methods of building.
Here are four pictures of the actual state of my work.