91 e350 a/c hose

I am needing a low-side/suction a/c hose assembly for a 91 e-350 RV. My Ford dealer says it is obsolete now. Any suggestions on what to do or where I may find a hose?
 
Thanks,
James

Contact an A/C repair shop and ask if you can order a replacement hose. Or look for an independent auto parts store that "makes" hoses, they might be able make a hose for you, they may have to use the old fittings with the new hose.