Where can I buy lugs for a classic roadster frame geometry?
No Roadster lugs are available for the independent or small shop. That is why I had to make them.

Roadster lugs are made [India, China, Taiwan and of course in the Netherlands], it is just that distributors like Nova and Ceeway do not buy them.

I find it amusing about the comment about TIG welding lugs. Why lug anything really...it is just for looks. Stamped lugs are welded together :)  Only the expensive racing lugs are cast.

I think you best bet is to try and find them in India or Taiwan and ask for a sample.