Need Sebo x-1 parts

Question

I need a hose for a SEBO X-!. Part # HG-50. No one in my are(Syracuse New York) seem to carry parts and on line vendors only seem to carry basic bags, filters and brushes. I am the Maintenance Supervisor for the Onondaga County Public Libraries and have 10 of these machines and am spending way to much time trying to track down a source for parts. Unless I can find a vendor I am probably going to send these machines to auction. Can you provide me with a reliable source for parts?