Plumbing a single master cylinder

[Bigdipper]

Can anyone send me a plumbing diagram for a model A hydraulic brake conversion. I am trying to figure out how to plumb my single master cylinder with a 10 lb rpv from the outlet of the master cylinder to the connection of the front and rear brake lines and a low pressure brake light switch. From what I have researched the switch needs to be plumbed before the rpv so it will work correctly. Anyone have a picture or diagram of this plumbing would be greatly appreciated.