Same reason I didn't marry a fat woman and learned to love her.
What about bead blasting it with really fine media? Would that shine it up enough to buff to a brushed stainless?
Don't think you'd gain much that way vs straight out buffing. Maybe wire brush, or something. What you need to look at is getting it even.
Let me put it this way. I picked up a model 66. This thing already has the finish you're looking for. Mine had some light pitting with rust spots. Prev. Owner probably had it somewhere moist. So I sanded, and wire brushed, all that stuff. It looks decent, but it won't fool anyone, that's looking for original finish. Yes, it could be done, but getting it right would take a lot of painstaking work. My time is valuable, and if I really wanted to make my 66 special, I'd send it out to be done right. There's a "grain", for lack of a better word, on this brushed stainless. And if it's done wrong, it's easy to spot.
If you don't care(like me) and just want something decent, then yes. But that roll mark is going to be the first casualty. It'll still be visible in the right angle, but at other angles, not so much. Smith does refinishing, if you want it right, roll mark and all. But short of that, my opinion would be that it would be imperfect.
Oh, and about that fat girl...they're warm in the winter, shady in the summer!