I have one; all satin chrome, with target adjustable rear sight. Stock, except for some nice looking Rosewood grips I just got for it. Have yet to shoot it with those grips; but from a practical stand point, the hard rubber checkered grips are hard to beat.
I bought it lightly used at a dealer, in the original box, with all the original accessories and manual; and it still had some brown grease inside it. I think the previous owner was likely frustrated with the sight as the gun was shooting way off point of aim, and it took me a lot of head scratching to figure out how the adjustments actually worked. It shoots right on now!!!
A couple of other modifications I did; the slide was rubbing on the the dust cover (front portion of the frame), so I had to give the inside of the slide a bit of relief with the die-grinder; I used red-lead as a tracing agent to mark the high spots; not a difficult fix, but it ran fine as it was. Mine has very tight tolerances frame to slide. I like it.
The other issue is fairly common in Nork 1911s; frequently the slide would fail to lock open after the last shot. I was advised by members here that it was likely "bad" Nork mags; I tried other mags, and same issue. Turned out that the tip of the mag release that engages the mag follower was a bit short. I built it up with TIG, and reprofiled it to engage the follower, but not interfere with the projectile on loaded rounds. All mags, Norks included now work flawlessly.
Since then, I have done quite a few of these for other members; I do it no charge BTW (I'm an engineer, and don't do much tool and die work anymore, so it keeps my skills sharp LOL).