Just my opinion, but maybe thinking somewhat "out of the box" here would be most cost effective.
Would it be possible, and more feasible to grind the lobes off of a stock cam;
CNC replacement lobes from steel using the CNC;
And attach them for testing?
I'm simply trying to come up with a somewhat cost-effective DIY means to test different cam profiles.
I am by no means a machinist, or am I knowledgeable ENOUGH in the design, and manufacture of cams.
Like most, I am one who buys the best "off the shelf" cam I can get based on several other measurable factors.
But, swapping out lobes is an idea that should have been common by now. lol
Don't like the cam you've got, buy new lobes, and install!