I'd have to see the frame under the grips before I'd consider the gun shown. S&W would have never let a gun out the door with grips fitted in such a way.
My 57 no dash is my favorite gun, period - and I've got a lot of revolvers.
I only paid $500 for my 57, but I would not take $900 for it. It's in perfect shape, and who knows if I could replace it?
I've actually been finding quite a bit of .41 mag brass and bullets, although it takes a little shopping.