The places that came to mind when I read your post:
Roger Gibson/Frank Badalson Left A Message
Restorations by Julius
Jim's Auto Parts Nothing
Bill Rolik Enterprises
BradsNOSMopar.com Nothing
ECS Automotive Nothing and Knew Nothing
Glen Ray Radiators (not sure if they have hoses or not)
They may not have the correct hose per se, but they may be able to point you in the direction of who does their stampings and you may be able to help you out. Good luck with your search.