I've been thinking for a while about switching from Canon to Nikon, but the thing that holds me back is how much it would cost me to get the long lenses on the Nikon side.
Choice 1: Keep my 7D and add a 5D3 through CLP. Sell my 10-22 and 17-55 and replace with FF equivalents, perhaps 17-40 and 24-70? Keep my 70-200 F4 and 100-400. Pretty straightforward, except that as an amateur, I really don't fancy lugging around 2 bodies.
Choice 2 (which is what I would love to explore): Sell my 7D and get a D800 for about the same price as a 5D3 through CLP. Advantage is that with the DX mode, this is a one camera solution for me, as I like to go wide as well as long with birds. I would sell my 10-22 and 17-55 and replace with the Nikon FF equivalents to the Canon choice above. Cost-wise it is about the same as the Canon roughly. The problem comes when I sell my 70-200 F4 and 100-400 and try to replace with the Nikon equivalents. The 70-200 F4 VR is considerably more expensive used than the 70-200F4 IS - I picked up my Canon lens for $900 and I can't find any of the Nikon lenses for less than about $1200-1250. Probably because it is new? Also, the 80-400G is well over 2 grand used, while I picked up my mint used 100-400 for $1250. I'm looking at well over 1 grand extra to be equivalently equipped on the Nikon side.
Is the 70-200 F4 VR worth the $1200+ asking price used? Is it likely to go down, given that the 70-200 F4 IS which is probably just as good optically is a good $300 cheaper? Also, is the 80-400G that much better than the 100-400L to command a thousand dollar premium?