Stainless braided would not have a black rubber coating. I'm not sure about after market hoses but OE rubber brake hoses are not compatible with mineral oil based fluids. It will destroy the rubber. I work in brake development and have seen the results of people who put motor oil, trans fluid, power steering fluid, etc in the master cylinder reservoir, several thousands $ . It would be best to have napa or other company make you a set small diameter hydraulic hoses or run just run it through some brake pipe
Dave