You did not mention if you would be building from a kit or from scratch.

I currently am flying an old Nieuport that is still offered by Proctor Enterprises here in the United States. It is 1/6 scale and is the -17 model although I have also aquired a set of drawings to convert the kit to a -24 or -27 version. The kit new sells her for 209.00 U.S. plus shipping Proctor also has all the Williams parts plus any WW I rigging and detail items that you could need. They have a Web site at

http://www.proctor-enterprises.com/main/

They also offer a 1/4 scale Nieuport 11 kit that is museum quality.