Congratulations, great deal and good choices!
I have the 16-35, but I don´t use it much. I don´t like the wide angel distortion you get beyond 24mm. Landscapes are OK, but people look terrible. I have also sold my 50L, because I am using the 35/1.4 (Sigma) and 85L instead. So from my perspective, you made good choices.
5DIII, 1DX, 8-15/4L, 16-35 f4L IS, 24-70/2.8L II, 70-200/2.8L IS II, 70-300/4-5.6L IS, 200-400/4L IS 1.4x, Zeiss 15/2.8, 17/4L TS-E, Zeiss 21/2.8, 24/3.5L TS-E II, Zeiss 35/1.4, Zeiss Otus 55/1.4, Zeiss Otus 85/1.4, 100/2.8L IS Macro, Zeiss 135/2, 600/4L IS II