RE: Is the Staggerwing too dificult to build
You can get the "old Royal" kit new from Hobby Barn in Tucson, AZ. It's made by Maurataka in Japan. They used to make it for Royal.
It is a builders kit. A friend and I built one last winter. The instructions leave a lot to be desired, but if you like carving and sanding, it ends up as a super model.