My first two '60 Pro' style replacement stocks were $43 + s/h from S&W. They really improved both the 5" and newer 3" 63:
I liked those grips - the 60 Pro style - so much, I paid $631 + s/t for my third set... which came on my new 60 Pro! How is that for expensive grips... of course, I got a new 3" 60, too!
"Yes, dear, those grips were a bit dear in cost... but, they came with a neat revolver, too!"
Stainz