Redhawk will be more labor intensive than a Super due to needing to clock the barrel if you're removing it for machining. If you're just chopping and recrowning, I don't see any major risk but I would figure the front sight (milled slot? pinned? D&T'd) before I cut anything.
+Parts Store+ Ruger Redhawk DX Front Sight Base [P408] - Designed for shortened standard Ruger Redhawk barrels, this base is also adaptable to the early 4-inch models with the pinned-in blades and the Super Redhawk Alaskan models. Comes with 8-40 mounting screw. Available in blue and stainless...
They marked everything as "out of stock" and are only taking phone orders at the moment.
Thanks for all the great advice. I don't think I could sell or trade one of my two Redhawks, they are more like reliable old friends. I wanted a stainless Ruger 44 spl but I guess they have been discontinued.