Interesting math, but how does this translate to heads, rocker arms, pushrods and valves?
Let's say that you have trial assembled your combo and done the math provided.

How do you measure scrub?
How do you correct it?
You can lengthen the valve end with lash caps (requiring shorter pushrods)
What else?
Machine to move the rocker shaft closer/further from the valve?
Try various rockers?
Machine the rocker arm pads?