Cal, I am sure, you will just love the MM!
… but regarding selling the Noct-Nikkor - don't do it, really don't!
There is not other such lens than the Noct - you described it perfectly - it is an absolutely unique lens, never been challenged by any other lens around.
I don't shoot my Nikon SLRs except for long lens usage with motorsports.
Even though, I swore to myself, never to sell the Noct.
I still hope for the day, when Nikon makes the ideal digital camera, to shoot the Noct again, that lets me focus it as fast, as a Noctilux on a Leica M.
I really wish for a Nikon F in digital form (or better a FM3a sized body with a laaaarge viewfinder, as the F3HP finder and exchangeable screens).
I tried out every Nikon DSLR since the Nikon D3 and didn't like any of them, to use the Noct with - the Nikon F3HP really is still the best body, to use this lens on (with a full matte H2 screen).
You shouldn't sell the Noct.