Hi desertRat,
I have used a company which entire business is camshafts. They even manufacture bespoke camshafts. Their camshaft/mods sits in almost every car in the National Street Car series. Several Pro rally drivers, brand dealers and other automotive professionals use them. They are anything but cheap, but they follow their customer to a satisfactory result no matter what. They know cams. That's why I am not too worried.
As per their instructions my next step is to measure "exchange height(?)" at TDC using my dial gauge, after assembly (still waiting for the pistons to arrive).
No roll-of-the-dice, but I am just an engineer without professional mechanic skills, so that considered I guess anything is.