Congratulations on your new revolver. Hope you enjoy it. The L frame is still one of the best balanced, accurate and "shootable" handguns out there IMO.
I've done over 100 of those refits (recalls) over the years. Still have the factory tools and parts.
Like most things, the "fun" comes at the end, when you get to test fire the modified gun with .357 caliber ammunition. Smith and Wesson even supplied the test ammo.
My "recall #1 job".......worked on my own gun first of course, had to put this one in the space provided.just below the serial number.