5K Cam Hep?

Dude, bolt it all up, measure your lifter preload, adjust rocker posts by either machining or shimming. Forget all this malarkey and just go straight to the root of the problem.

And don't worry about the pushrods leaning over, they lean over every time they rise and fall!. You're worrying about something insignificant.

Trying to guess how much your head needs to be shaved to keep pushrods vertical is a waste of time. Measure it up, lfix if required.