I'm looking to revamp my kit before the year is up, how's this end result look?

[memostothefuture]

why spend money on a grip? do you use the second shutter button that much?
the battery in the 5d mkIII is pretty solid. I generally have one spare battery somewhere in a pocket but most of the time I can go through a day of intense shooting without needing it.

>70-200mm f/2.8L II IS USM + 2.0 TC III @ 400mm
I use this setup on my 5d mkIII as well and it's quite delightful. disagree about the AF being too slow, I just set the focus distance to 2.5m to infinity on servo and most of the time I'm fine.

for landscape work I have forsaken the 16-35 in favor of the TS-E 17mm. the 24-105 is missing the macro function of the 24-70 but otherwise makes for an excellent walkaround lens. I thought I was going to be bothered more by having to work with f4 on two of my lenses but it turns out I'm not.