rebuilding a rebuilt slant

I understand that all the valve train for hydo. would have do be used. Basically I would like to get all the block work done, then get the motor back in the car the take my time building a head. I plan to use the hydraulic setup. Will the hydro. valve train work on a 75 head? I know that the rocker shaft and one bolt in particular I specific to the hydro setup. What provisions would I have to make to the mechanical head to use the hydro valve train?