Nikon DSLR for MF lenses

Hello.

I was a long time Canon guy, until I got a Fuji X Pro1. Then somehow I got the Nikon manual focus ais lens bug, and have been shooting with the following lenses on my Fuji:

• 28mm 2.8 ais
• 50mm 1.2 ais
• 85mm 2 ais
• 105mm 2.5 ais

I really enjoy the look of these lenses. While some are not as sharp as the Fuji (I have the three Fuji primes) I really like their look. And I don't mind the MF. In fact, recently I did a photo trip to a nearby museum and shot all afternoon with the 28 and 50mm, and really did not make a bad shot.

I am selling my Canon 7D and zoom lenses, and the macro. What I would like to do is get a used Nikon dslr that would take my ais lenses without an adapter. I am not looking to build another dslr empire, but it would be nice to get a taste, after all these years, of Nikon cameras since I already have the lenses.

The ideal would be to get a camera that actually improves on the image quality I was seeing with my 7D. I don't really care about movies, or flash, but I would like something with really good IQ, and in good physical shape. I know very little about Nikon, what bodies work with what lenses, and what bodies are the most desirable.

Note: this is my second post here on this subject. The other was in the other Nikon forum (confusing to me) and I must not have written it well, because the responses were not that helpful. Here's hoping...