This may not be a kosher thing to do and I hate walking a thin line to help someone, but... The only company if know of in the world who makes crimped SS oil hoses using original fittings and near-original ferrules is Classic Cycle City, and that's all I'm gonna say on the matter. If you want to know more about them, please ask someone else on the board.
Carpy has SS oil hoses available. You can also attempt make your own through a local hydraulic hose company.
If anyone else has a source, please let us all know. Thanks.
RR