My local shop has a very clean and working version of this lens. I am primarily a nature shooter and have used the Canon 24mm T/S v1 when I shot Canon years ago. I miss working with t/s lenses, but not enough to justify the cost of Nikon's newest versions. The lens I have found is priced at $250 US and it would be used on my D810. I have never used a non ai lens, but I do not believe that any of Nikon Tilt or T/S lenses are aperture coupled, so this should not matter.
What is the optical quality of this older Nikkor... especially on a high resolution body like the D810. Just for reference, I am using a Zeiss 18mm f/3.5 ZF1 and Nikon 16-35mm VR as my primary wide-angle lenses. While the Zeiss is sharper than the Nikon, it has more CA than the Nikkor at 18mm and limited by being a single focal length. Regardless of the limitations of my current lenses, I find them both to be adequate on my D810 especially after I do a bit of post-processing.
thanks for you thoughts and cheers,
bruce