Budget Rocker choice

Krooser said
Aftermarket roller rockers are seldom accurate on ratio except for T&D and Jessel stuff.

Use beehive springs and your clearance issues disappear.

Agreed, and if using factory rockers, especially ductile irons, that is a good way to gain clearance.

With a roller rocker, you may gain clearance, but what other issues remain? My point, fix the main issue (geometry), and they all go away.