juice brakes questiones

[larry harding]

i am slowly rounding up the parts to put juice brakes on my speedster project and have a couple of questions.
1. what solid king pin or king pin kit do i need to replace the original hallow king pins?

2. what type or year master cylinder should i use?

i have the les andrews books as well as the "how to build a traditional ford hot rod" both books have a lot of info on the juice conversion, but i don't see any specifics on the king pin and master cylinder.