Bill Houghton, Sebastopol, CA
Have you e-mailed Constantines, which has been supplying inlay and veneer for a million years, yet?

You might also contact Ellis Walentine directly, and see if he can suggest any of the firms listed on WoodFinder; a search for "parquetry" on the WoodFinder search tool didn't get me anywhere, but he may know who might be able to help.

Kind of a specialized need; but maybe there's someone can help.