long stem valves and raising rocker shaft

Thanks guys, I talked to a cylinder head shop and they were scared to mill spring pocket without sonic testing or someone tell them they could go that deep. They said to use long stem valves which is also what my mopar engine book (8th ed) says to do. Book says to use stock TA rockers, but move shaft. Also says to mill off stands and install new brackets. I was hoping there was an easier way as I have never seen this done.
Cam is a lunati solid roller 60433
Thanks again Gary:notworth: