Bill Emmett wrote:
I don't see what you're trying to do. Your wife has a stable of Nikon lenses, but you fail to mention your Canon lens collection. If you go down the Nikon path your Canon lenses will be useible until the 5D Mark II dies, which could happen at any time. In your position, I'd go for the newest technology I could buy. The 6 D Mark II, or the 5D Mark III. Or, look for a used 5D Mark IV. Good luck.
B