e30 brake hoses specs

[NathZz]

Does anyone have the specs of the brake hoses?
I am looking at upgrading stainless steel and i have to get them made up locally due to our poor currency.

[89alpina.i]

Interchange Part Number: 34 32 1 159 890 - FRONT

Interchange Part Number: 34 32 1 159 878 - REAR

Placement on Vehicle: Left, Right, Front, Rear