Sometimes (often actually) when I get stuck and can't figure out the solution I research and look at what the "factory" did in a similar situation. Find a vehicle that has much of what your trying to use and find what else they used in that system, how did the factory do it.
You still need some understanding and judgement of your own but can benefit a lot from the factory engineering.
What vehicle used your new MC, or what vehicle has a dual circuit MC about that size and 4 wheel drums? Any valves or distribution blocks on them?
