Those are nice guns. I bought one of those about 19 years ago, was gonna give it to my (then) girlfriend for Xmas. We broke up, and I had a stupid moment & sold it. I should have kept the gun,,, Miss Penny would have loved it.
That was a very good price for a stainless Mark II, especially with three additional magazines. (You get two originally with the pistol) I believe NIB might be a bit of a stretch. I see plenty of what appears to be scratch/wear marks, but that doesn't take anything away from the good find and great deal you got - and off Gun Broker too!
The guy I got it from had oiled it a lot when wiped down the marks you see are gone. Wished I had that Stainless 10" to go with it. I have a 10" blued. I am working on getting all the MKII variations I can find. I presently have 10 of them.