I’m getting ready to install my 40k max transmission cooler. I can’t figure out what I need to buy as far as hardline and compression fittings goes. I have 2 of these to adapter the cooler to the factory fittings. They are the same thing just listing both part numbers for other people to refer to. The thread I found said all I need is those 2 fittings some hardline to make an extension and 2 compression fittings. I know it’s 3/8” but what kind of hardline? stainless steel, brass, and what kind of compression fittings? All I can find is brake line and fuel line? I want to make it look factory with hardline and fittings.