5.9 & a solid roller

Ok so your question is about a magnum short block with W heads, right?
No

There were W head assumptions.

While I will be using W5’s up top later, there is no question about there use or set up from myself.
My question has nothing to do with the W heads.

The question is,
“Who has installed a solid roller in a 5.2/5.9 and let it rip?
Any mods done? Like oiling, lifter bore correction, etc....

If that's right, just have the Magnum block deck drilled through for rocker shaft oiling and chose your poison for W series valve gear. Right?
That’s a 50/50 because you can get gear to oil the W2/5 via pushrods (TD) or the regular LA method of oil up through the block into the heads.

Any competent machine shop could do it. Hell, for that matter, someone good with a drill press could set it up, I imagine.
Myself as well.