Just replaced my whole system. The rod end seal was leaking ( dynamic seal OK )
CARiD...sells individual master cylinders without the additional parts in the kit that I found others selling....many additional parts not required.
Tilton P/N's 74-750 and 74-875
Gates Transmission
oil cooler hose...SAE J1019 3/8"
Replaced the BMW reservoir with a like P/N
Relocated the new reservoir a clamp width higher to get the clamps out of the cockpit and accessible from the engine bay.
Added a hose clamp at the forward face of the footbox to insure no contact between pedals and hoses.
ERA520