Do a search for hydroboost.
I used one, and we have discussed it before.
Pictures of what I used are on my link below.
While it works fine, and I will continue to use it, next time I would mount the booster and MC to a separate bracket on the frame and use a long push rod from the pedal to go back to the booster.
In one of the other threads on the subject I posted links to the brackets and parts I would use if I did it again.
By the way, what diesel do you plan to use?
Grigg