I have several thoughts.
First, it's obvious that we are now getting into the real cutting-edge of SOHC development. And, Jay, you're leading the charge.
Second, your stuff's so pretty you need to make some out of gold. They'd be just right nestled into the decolletage of a really first class blonde or redhead!
Third, wouldn't it make sense to look at EDM to create oil-holes.
Fourth, spacing 'donuts' along a piece of tubing and having them brazed into place in some 'alley' shop would seem to be a way of fabricating cam blanks. There're surely little shops here in the Detroit area that would be 'up' for such a job.
And all the above comments apply to those who're chiming in on this project. This is first-class stuff!!!
KS