Get in touch with An Comunn Gaidhealach Ameireaganach , The American Scottish Gaelic Society. at this link: http://www.acgamerica.org/

They have links to local classes in various areas. In the past they've had resources for sale, e.g., dictionaries, grammars, audio lessons, etc. I don't see the list up at this time but you might ask to see if they have what you might need.

Cheers,

-John-