Yes, I am very tempted to sacrifice all of the Nikons for the M7. I do use the AE function of the F3 and M7 a lot, but I can manage with manual exposure setting.
The F is chrome, with plain prism. No meter, which may be a bit of a PITA, especially with the macro lenses. Then I'd have to calculate light fall-off based on magnification, etc.
F3 has been ultra reliable so far, but somehow she has a strong dislike to it.
So, that's why I'm leaning towards saving the F2 if the Nikon system survives at all.