My EAA chapter has a Nieuport as a chapter project. This one is being build as a US ultralight and has a little rotax 2-stroke on it. It's not really my cup of tea. The structure is primarily small aluminum tubes pop-riveted together using gussets. It looks cool, and could probably be a lot of fun. As far as I know, they haven't had structural problems, but I'm just not a pop-rivet guy.
I was going to post some pictures but I don't have them with me. If I remember I'll put them up on this thread.
-- IFMU