There's a guy on photo.net from Mumbai (Subbarayan Prasanna) who gets the ORWO films from a local dealer. He has mentioned he can get 400 ft. and sometimes 100 ft. rolls (probably short ends), in threads such as this.
Not sure if it's economical or practical to have film shipped from India, but it might be worth dropping him a note for further details - might be worth it to get smaller amounts. I think the North American cinema film resellers only sell Kodak, Fuji and possibly Ilford, so I don't think you can get any from them. If I didn't have some 5222 in the freezer already, I'd inquire myself.